JP3025876B2 - Safety device for lorry with wing roof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a lorry with a wing roof, and more particularly to a safety device for improving the safety of a lorry with a wing roof by using a simple functional component called a relay. Things.

[0002]

2. Description of the Related Art In a lorry, a large wing roof as shown in FIG. 1 is provided so that cargo can be easily taken in and out, and large or long cargo can be taken in and out. Some are employed. Such a large wing roof must be greatly opened as shown in FIG. 1 when loading and unloading cargo. This operation of opening the wing roof must be performed after confirming the surrounding conditions, and the truck must not be started with the wing roof kept open. This is because the end of the wing roof that is largely opened may cause an accident that, for example, breaks or cuts a pipe or a wiring in a factory.

For this reason, in this type of lorry with a wing roof, as proposed in, for example, Japanese Utility Model Laid-Open Publication No. 63-54528, "an unlocked state detection means (of a wing roof) and a detection method therefrom" And a warning device that issues a warning upon receiving a signal, and a start prohibition mechanism that prohibits the start (of the truck) in response to the detection signal from the unlocked state detecting means.

[0004] However, since this conventional start prohibition mechanism is intended to prohibit start by an alarm sound from an alarm device, it involves the judgment of a person, and if the person does not hear the alarm sound. If there is an error in the person's judgment, a truck (lorry) may be started. Also, while the wing roof is open, that is, during the cargo handling work, the warning sound from the alarm will be emitted and it will be difficult to carry out the cargo handling work. In some cases, the start prohibition mechanism proposed in Japanese Utility Model Application Laid-Open No. 63-54528 may not be a complete safety device.

The inventor of the present invention has conducted various studies on how to completely prevent the starting of the lorry when the wing roof is opened, and as a result, the wing roof was examined. When the vehicle is open, it has been found that preventing the engine of the lorry from starting produces good results, and the present invention has been completed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made on the basis of the above circumstances, and an object of the present invention is to prevent a lorry with an open wing roof from starting. The aim is to increase the safety of lorries with wing roofs.

That is, the object of the present invention is to
A safety device that disables the starting of the lorry by obtaining a signal from the switch that detects the open state of the wing roof and preventing the cell motor from being energized or supplying fuel to the engine. It is to provide with a simple configuration.

[0008]

Means for Solving the Problems In order to solve the above problems, first, means according to the first aspect of the present invention will be described with reference numerals used in the following description of embodiments. "This is a safety device for a lorry 10 having a wing roof 12 projecting out of the body 11 and opening. The opening detection switch 20 detects an open state of the wing roof 12, and a signal from the opening detection switch 20 is obtained. And a relay 30 for disabling energization of the starter motor 13 of the engine.
A connection terminal 34 connected to the cell motor 13 side of the
A terminal 33 connected to the switch 14;
A switch 36 for normally closing between 33 and 34 and an open detection switch
The wing roof 12 is opened by the switch 20
Coil 3 that is energized to open the switch 36 when
7. The safety device for a lorry 10 with a wing roof, characterized in that the engine is not started when the wing roof 12 is opened by the relay 30.

That is, in the safety device according to the first aspect, the switch 20 for detecting the opening of the wing roof 12 which the lorry 10 with wing roof generally has is provided.
Is completed by mounting a relay 30 in an electric circuit between the truck and the cell motor 13 of the engine of the truck 10. The engine cannot be started when the wing roof 12 is opened by the relay 30. It is like that . Further, in this safety device, since it is only necessary to attach the relay 30 between the open detection switch 20 and the starter motor 13, not only can the configuration of the safety device be simplified, but also the lorry 10 with the wing roof can be used. Safety can be improved.

A truck 1 equipped with the relay 30
The operation at 0 will be described with reference to FIG. First, when the wing roof 12 is closed, the opening detection switch 20 does not conduct electricity between the terminals 31 and 32 of the relay 30 when the wing roof 12 is closed. , And a current is supplied between the terminals 31 and 32 of the relay 30. The relay 30 has a terminal 31 and a terminal 3
2, a terminal 33 and a terminal 34 are connected to the key switch 14 and the starter motor 13 of the truck 10, respectively.
Numeral 6 is normally connected to the terminal 34. The switch 36 of the relay 30 is separated from the terminal 34 by an electromagnetic coil 37 which is energized and excited so as to contact the terminal 35 side.

As described above, the relay 30 enables the energization of the starter motor 13 by operating the key switch 14 when the wing roof 12 is closed, that is, when the open detection switch 20 is not operated. That is, the engine of the truck 10 can be driven. Contrary to this, when the wing roof 12 is kept open as shown in FIG. 1 and the open detection switch 20 which detects this is operated, the electricity between the terminals 31 and 32 of the relay 30 is disconnected. Will be done.

Then, the electromagnetic coil 37 is energized to be excited, but the excited electromagnetic coil 37 causes the switch 36 to be separated from the terminal 34 and to move to the terminal 35 side.
4 cannot be energized. Therefore, when the wing roof 12 is open, the truck 1
0 and the key switch 14 is operated,
3 will not run and its engine will not run.

Accordingly, in the lorry 10 having the safety device according to the present invention, if the wing roof 12 is kept open, it is impossible to energize the starter motor 13 by operating the key switch 14 and the engine is started. The wing roof 12 cannot be driven.
If the vehicle is not closed, the lorry 10 cannot be started, which is highly safe.

A conventionally used alarm device or alarm lamp may be applied to the open detection switch 20, and the function of the safety device is not impaired by that.

[0015] In order to solve the above-mentioned problem, the means adopted by the invention according to claim 2 is the same as that of “body 11
A safety device for a truck 10 having a wing roof 12 protruding and opening from the
The open detection switch 20 for detecting the open state, and a relay 30 to disable the supply of fuel to the engine to obtain a signal from the open detection switch 20, the relay
30 is a connection end connected to the fuel pump side to the engine
And a terminal 33 connected to the key switch 14 side
And a switch 3 for normally closing the terminals 33 and 34
6 and the opening detection switch 20
Excited when switch 2 is open to open switch 36
As having a coil 37, condition, does not operate said fuel pump engine when the wing roof 12 is opened by the relay 30, engine is characterized in that to prevent possible start Wing A safety device for the truck with a roof 10 ".

That is, in the safety device according to the second aspect,
The relay 30 according to claim 1 is applied to an electric drive circuit of a fuel pump of a lorry 10. In order to prevent the engine from starting, the energization of the cell motor 13 may be disabled as in the first aspect of the invention, but the supply of fuel to the engine of the lorry 10 may be disabled. However, in the invention of claim 2, the relay 3
In the case of 0, the signal from the open detection switch 20 is obtained, and supply of fuel to the engine is disabled.

Therefore, the safety device according to claim 2 also has
A switch 20 for detecting the opening of the wing roof 12 that the lorry 10 with a wing roof generally has;
This is completed by attaching a relay 30 to the electric circuit of the fuel pump when the engine of the truck 10 is a diesel engine. Therefore, in the safety device according to the second aspect, it is only necessary to mount the relay 30 between the open detection switch 20 and the electric circuit of the fuel pump. Truck with wing roof 1
Therefore, the safety of No. 0 can be improved.

[0018] In order to solve the above-mentioned problem, the means adopted by the invention according to claim 3 is the same as that of “body 1
1 and a wing roof 12 which is opened
Between the cell motor 13 and the battery power supply.
Safety device for the lorry 10 with a data relay 38
There is, open to detect the open state of the wing roof 12
The detection switch 20 and the open detection switch 20
Applying a signal to energize the coil 38a of the starter relay 38
And a relay 30 to impossible, this relay 30
Is a connection terminal connected to the key switch 14 side of the engine.
And a terminal 33 connected to the coil 38a side.
A switch 36 for normally closing the terminals 33 and 34;
The wing roof 12 is opened by the opening detection switch 20.
Excited when released to open switch 36
The relay 30 has a coil 37
Therefore, when the wing roof 12 is open,
While the starter relay 38 remains open, the starter motor 13
Wing characterized by being unable to start
A safety device for the truck with a roof 10 ".

[0019] That is, in the safety device according to the third aspect,
The battery motor 13 and the cell motor 13 of the truck 10
With a starter relay 38 interposed between
The starter relay 38 is a key switch.
When the electromagnetic coil 38a is energized by the operation of the
The power supply is connected to the starter motor 13
It is. The electromagnetic coil 38a is connected to the relay 30
The terminals 31 and 32 are electromagnetic coils
38a is wired in series.

[0020] The relay 30 according to the third aspect has a terminal inside.
33 and a terminal 34, and these terminals 33 and
A switch 36 faces the terminal 34. This switch
The coil 36 is energized by an electromagnetic coil 37 in the relay 30.
Unless the terminal 33 and the terminal 34 are energized,
It is something that has been done. Then, the electromagnetic coil 37 is
Then, the open detection switch 20 is connected.

[0021] Therefore, in the safety device according to the third aspect, c.
If the inflation roof 12 is closed, an alarm
In addition to the fact that power is not supplied to the
Is not energized to the electromagnetic coil 38a.
Switch 36 allows current to flow between terminals 33 and 34.
It will be able to function. Therefore, in this case,
-If the switch 14 is operated, the starter relay 38 operates.
The cell motor 13 is driven by the
The engine of the car 10 is activated.

[0022] On the other hand, the wing roof 12 is open
If so, it is used to turn on the alarm lamp, etc.
Not only will the power be turned on and a warning will be issued, but also the relay
Electric power is also supplied to the 30 electromagnetic coils 38a. this
Therefore, the switch 36 is attracted by the electromagnetic coil 37.
Therefore, this switch 36 allows the terminal 33
And between the terminals 34. Follow
In this case, even if the key switch 14 is operated,
Since the tarta relay 38 does not work at all,
Of the truck 13 is not driven.
The engine is not activated.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the invention according to each claim will be described with reference to the embodiments shown in the drawings.
A rear view of a lorry 10 to which the safety device according to the present invention is applied is shown. In this lorry 10, a wing roof 12 is opened in a state of protruding from a body 11. Therefore, if the lorry 10 is started with the wing roof 12 opened,
Naturally, there is a risk that the wing roof 12 may damage the surrounding piping or cut off the wiring.

According to the first aspect of the present invention, the signal from the open detection switch 20 is obtained and the starter motor 1 of the engine is obtained.
In the invention according to the second aspect, the supply of fuel to the engine is disabled by obtaining a signal from the open detection switch 20. However, if it is possible to obtain a signal from the open detection switch 20 so as to make it impossible to energize the starter motor 13 of the engine, it is easy to apply this to make it impossible to energize the fuel pump. The description of the first embodiment of the present invention replaces the description of the second embodiment of the present invention. Also, various embodiments of the invention according to claim 1 can be considered,
Here, the description will be made separately in the first embodiment and the second embodiment.

FIG. 2 shows an embodiment according to claims 1 and 2.
In this embodiment, five terminals are provided in the electric circuit between the self-motor 13, the key switch 14, and the open detection switch 20 for the wing roof 12 of the truck 10. One relay 30 having
Is connected. The relay 30 has a terminal 31 and a terminal 32 to which the open detection switch 20 is connected, and has therein an electromagnetic coil 37 that is excited by energization from the terminals 31 and 32.

The open detection switch 20 is connected to the truck 10
This is a normally-open switch that energizes the relay 30 when the wing roof 12 is opened, and may be connected to an alarm device or an alarm lamp (not shown). That is, the opening detection switch 20 is installed on the body 11 side of the lorry 10, for example, near a portion where the wing roof 12 is pivotally supported.
0 is used as a power source.

The relay 30 for receiving an electric signal from the opening detection switch 20 is housed in, for example, a switch box for the truck 10, and is connected to the opening detection switch 20 as described above. In addition to the terminal 31 and the terminal 32, as shown in FIG.
0, a terminal 33 connected to the key switch 14, a terminal 34 connected to the “on” side of the starter motor 13, and a terminal 35 connected to the “off” side of the starter motor 13, At the inner end of the terminal 33, a switch 36 which is attracted by an electromagnetic coil 37 between the terminal 31 and the terminal 32 is provided so as to be openable and closable. The switch 36 is always urged to contact the terminal 34 side, but when the electromagnetic coil 37 is excited, the contact to the terminal 34 side is released by the attraction force.

When the wing roof 12 is closed, that is, when the open detection switch 20 is not operated, the relay 30 configured as described above enables power to the cell motor 13 by operating the key switch 14. That is, the engine of the truck 10 can be driven.

On the other hand, when the wing roof 12 is left open as shown in FIG. 1 and the opening detection switch 20 which detects the opening is operated, the terminal 31 and the terminal 32 will be conducted. Then, the terminal 31 and the terminal 3
The switch 36 is separated from the terminal 34 and moved to the terminal 35 side by the electromagnetic coil 37 which is excited by being energized between the two, so that energization between the starter motor 13 and the key switch 14 cannot be performed. Therefore, when the wing roof 12 is open, even if the key switch 14 is operated on the truck 10, the self-motor 13 is not driven, and the engine does not start.

FIG. 3 shows a safety device according to the third aspect of the present invention.
Is shown. That is, this safety device is intended for a device in which a starter relay 38 is interposed between the cell motor 13 of the lorry 10 and a battery power source. The power supply is connected to the starter motor 13 when power is supplied to the power supply 38a.
The electromagnetic coil 38a has a relay 30 interposed therebetween, and its terminals 31 and 32 are wired in series with the electromagnetic coil 38a.

The relay 30 of the embodiment shown in FIG.
The terminal 33 and the terminal 34 are provided inside, and the switch 36 is opposed to the terminal 33 and the terminal 34.
The switch 36 is connected to the electromagnetic coil 3 in the relay 30.
As long as the terminal 7 is not excited, the conduction between the terminal 33 and the terminal 34 is always performed. The open detection switch 20 is connected to the electromagnetic coil 37.

Therefore, in the safety device of the second embodiment, when the wing roof 12 is closed, not only is the power to the alarm lamp not supplied, but also the relay 30
No power is supplied to the electromagnetic coil 38a, and the switch 36 enables power supply between the terminal 33 and the terminal 34. For this reason, in this case, when the key switch 14 is operated, the starter relay 38 operates to drive the starter motor 13, and the engine of the lorry 10 is brought into the operating state.

On the other hand, when the wing roof 12 is open, power is turned on for the alarm lamp and the like, and not only a warning is issued, but also power is supplied to the electromagnetic coil 38a of the relay 30. You. For this reason, the switch 36 is attracted by the electromagnetic coil 37, so that the terminal
And between the terminals 34. Therefore, in this case, even if the key switch 14 is operated, the starter relay 38 does not operate at all, so that the starter motor 13 is not driven, and the engine of the lorry 10 is not activated.

[0034]

As described in detail above, according to the first aspect of the present invention, as described in the above-described embodiment, "the open detection switch 20 for detecting the open state of the wing roof 12 and the open detection switch A relay 30 for receiving a signal from the engine 20 and disabling energization of the cell motor 13 of the engine.
A connection terminal 34 connected to the data switch 13 and the key switch 1
Terminal 33 connected to the fourth side, and both terminals 33 and 34
The switch 36 for normally closing the gap and the open detection switch 20
Excitation when wing roof 12 is open
And a coil 37 for opening the switch 36
According to the second aspect of the present invention, the opening detection that detects the open state of the wing roof 12 is performed when the wing roof 12 is opened by the relay 30. A switch 20 and a relay 30 that obtains a signal from the open detection switch 20 and disables supply of fuel to the engine.
Terminal 34 connected to the charge pump side and a key switch
14 and the two terminals 33.3
A switch 36 for normally closing between the four and an open detection switch 2
0 when the wing roof 12 is open
And a coil 37 that is magnetized to open the switch 36.
As was example, the fuel ports of the engine when the wing roof 12 is opened by the relay 30
Pump is not operated, is characterized on its configuration that engine is to prevent start ", thereby to obtain a signal from the switch which detects the open state of the wings roof, energization of the starter motor, or By making it impossible to supply fuel to the engine, it is possible to provide a safety device with a simple configuration that makes it impossible to start the truck.

[0035] According to the third aspect of the invention, "Bo
Wing roof 12 that protrudes and opens from dee 11
Between the cell motor 13 of the engine and the battery power supply
Of the lorry 10 with the starter relay 38 in between
All devices, Detects open state of wing roof 12
Opening detection switch 20 and the opening detection switch 2
0 from the coil 38a of the starter relay 38
And a relay 30 for disabling power supply to the This lile
-30 is connected to the key switch 14 side of the engine.
A connection terminal 34 and a terminal 33 connected to the coil 38a side
And a switch 3 for normally closing the terminals 33 and 34
6 and the opening detection switch 20
Excited when switch 2 is open to open switch 36
With the coil 37 to be in the state This relay
When the wing roof 12 is opened by 30
The starter relay 38 remains open and the cell motor
13 was not able to start. "
This allows the wing roof to be open
Signal from the switch that detects the
Has not been able to start,
A safety device that makes it impossible to start a moving vehicle with a simple configuration
It can be provided.

[Brief description of the drawings]

FIG. 1 is a rear view of a lorry to which the present invention is applied, with one wing roof opened.

[2] according to claim 1 or claim shows the main part of the safety device
2 is an electric circuit diagram according to FIG.

Figure 3 is an electrical circuit diagram according to claim 3 shows the main part of the safety device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lorry 11 Body 12 Wing roof 13 Cell motor 14 Key switch 20 Open detection switch 30 Relay 31 ・ 32 ・ 33 ・ 34 ・ 35 Terminal 36 Switch 37 Electromagnetic coil 38 Starter relay 38a Electromagnetic coil

Claims (3)

(57) [Claims] 1. A safety device for a lorry having a wing roof protruding and opening from a body, comprising: an opening detection switch for detecting an open state of the wing roof; and a signal from the opening detection switch. A relay for disabling power supply to the engine cell motor; and a connection terminal connected to the engine cell motor, a terminal connected to the key switch side, and a normal connection between these terminals. A switch and a coil that is energized when the wing roof is opened by the opening detection switch to open the switch, and the engine cannot be started when the wing roof is opened by the relay. A safety device for a lorry equipped with a wing roof. 2. A safety device for a lorry having a wing roof protruding from a body and being opened, comprising: an opening detection switch for detecting an open state of the wing roof; and an engine receiving a signal from the opening detection switch to obtain an engine. A relay that disables the supply of fuel to the engine. This relay has a connection terminal connected to the fuel pump side to the engine, a terminal connected to the key switch side, and a normally closed connection between these terminals. And a coil that is energized when the wing roof is opened by the opening detection switch to open the switch, and the relay of the engine when the wing roof is opened by the relay. Cargo with wing roof, characterized in that the fuel pump did not work and the engine could not be started Safety device for an automatic car. 3. A safety device for a lorry having a wing roof projecting and opening from a body, and a starter relay between a cell motor of an engine and a battery power supply, and detects an open state of the wing roof. An opening detection switch, and a relay that obtains a signal from the opening detection switch and disables energization of the coil of the starter relay. The relay includes: a connection terminal connected to a key switch side of the engine; It is provided with a terminal connected to the coil side, a switch for normally closing the two terminals, and a coil that is energized when the wing roof is opened by the open detection switch to open the switch. When the wing roof is opened by this relay, the starter relay remains open and the cell A safety device for a lorry with a wing roof, characterized in that the motor cannot be started.