JPH08150894A - Automobile start safety device - Google Patents

Abstract

PURPOSE: To provide an automobile start safety device preventing an engine from being started unless a seat belt is fitted and generating an alarm via a buzzer and a lamp. CONSTITUTION: A battery power source 1 is connected to two channels of circuits respectively. The circuits are divided into two channels from an ignition switch 3. The circuit of the channel I is constituted of an engine switch 2-1a and an engine controller 4. The circuit of the channel II is constituted of a radio 5, a warning switch 2-1b, a seat switch 6, a buzzer 7, and a warning lamp 8. The engine switch 2-1a and warning switch 2-1b are component parts of a switch section 2-1, the engine switch 2-1a is normally turned off, and the warning switch 2-1b is normally turned on. When a seat belt is fitted, a switch selector section 2-2 can be connected to the switch section 2-1, then the engine switch 2-1a is turned on, and the warning switch 2-1b is turned off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile starting safety device, and more specifically, to a start control of an engine and a drive control of a buzzer or a lamp by a pair of switches which function based on the seat belt wearing. The present invention relates to an automobile starting safety device that performs double warning by notifying that a seat belt is not worn.

[0002]

2. Description of the Related Art Conventionally, a seat belt has been installed in an automobile for the purpose of protecting the safety of passengers in the event of an accident involving an automated worker. For example, the seatbelt installed in the driver's seat includes a male connector portion (wearing end) of the seatbelt installed diagonally above the driver's right shoulder and a female connector portion (receiving port) installed near the side brake. Side). When the driver pulls the male connector portion toward the female connector portion by hand, the belt connected to the male connector portion is also pulled together. Next, when the male connector portion and the female connector portion of the seat belt are fitted, the belt is stretched from the right shoulder to the left waist of the driver. The belt stretched in this way can prevent a situation in which the occupant is thrown forward by an impact at the time of an accident. It is well known that when a seatbelt is worn in this way, occupant damage during an accident can be reduced as compared with the case where no seatbelt is worn. In Japan, in recent years, the use of seat belts has become mandatory by law.

However, even after such a wearing of the seat belt is obligatory, the driver is often driven without wearing the seat belt, so that the casualty due to the accident is in a situation of no end.

As a conventional technique for eliminating such a seatbelt non-wearer, there is, for example, a seatbelt warning lamp. In this case, when the seat belt is not fastened, a warning lamp is lit on a part of the instrument panel in front of the driver's seat.

[0005]

However, even when such a warning lamp is used, it is not enough to attract the driver's attention, and the warning lamp may be missed.

Further, even when such a warning lamp is lit, the warning lamp is merely lit, so that it does not hinder the driving of the automobile. It was left to the driver's will not to wear it.

[0007] An object of the present invention is to provide a double warning to the driver that the seat belt is not fastened, if the seat belt is not fastened, the engine does not start and the buzzer sounds and the lamp is turned on. It is an object of the present invention to provide a vehicle starting safety device that requires a driver to always wear a seat belt stipulated by law.

[0008]

According to the present invention, there is provided a switch section provided on a seat belt receiving side to be fitted with a seat belt mounting end, and a switch section attached to the seat belt mounting end, the switch section being provided when the seat belt is worn. It is composed of a switch switching section for switching the ON / OFF state, and an engine start control circuit for switching the engine start control from OFF to ON based on the state of the switch section switched by the switch switching section.

Further, according to the present invention, it is detected that the driver is seated on the seat to control the buzzer and the alarm lamp.
The alarm circuit that switches from FF to ON and the control of the buzzer and alarm lamp by the alarm circuit from ON to OF by switching the state of the switch unit by the switch switching unit
And a safety confirmation circuit for switching to F.

[0010]

According to the present invention, since the switch switching unit and the switch unit cannot be connected to each other when the seat belt is not worn by the above means, the engine start control by the engine start control circuit is in the OFF state, and the ignition key is turned off. Even if the starter motor is rotated using, the engine will not start.

Further, the buzzer and the alarm lamp are controlled by the alarm circuit by detecting that the driver is seated on the seat.
Switch from FF to ON. In this state, when the seat belt is not worn (that is, the switch switching unit and the switch unit cannot be connected to each other), the buzzer and the alarm lamp are operable. Therefore, by turning on the ignition switch using the ignition key, the alarm lamp is turned on, the buzzer sounds at the same time, and a double warning that the seat belt is not attached is given.

By mounting the seat belt and connecting the switch changeover section and the switch section, the engine start control by the engine start control circuit is changed from OFF to ON, and the starter motor is turned by using the ignition key. The engine can start. Further, the control of the buzzer and the alarm lamp is switched from ON to OFF by the safety confirmation circuit, and the buzzer and the alarm lamp do not operate even if the ignition switch is turned ON by using the ignition key.

[0013]

1 is a block diagram showing the configuration of an embodiment of the present invention. In the figure, the switch unit 2-1 and the switch switching unit 2-2 are a pair of switches, and are hereinafter referred to as a safety switch 2.

Referring to FIG. 1, the safety switch 2 will be described first. Safety switch 2 is ON / O for circuit connection
A switch unit 2-1 for performing FF switching, and a switch switching unit 2-2 connected to the switch unit 2-1 to switch the state of the switch of the switch unit 2-1 to an ON / OFF reverse state. Have been.

The switch section 2-1 further comprises an engine switch 2-1a and a warning switch 2-1b. The engine switch 2-1a is a switch for performing ON / OFF switching of the connection of the circuit of the system I in FIG. Here, the circuit of system I is composed of a battery power source 1, an ignition switch 3, and an engine control unit 4.

The warning switch 2-1b is a switch for switching ON / OFF the connection of the circuit of system II in FIG. Here, the system II circuit includes a battery power source 1, an ignition switch 3, a radio 5, a seat switch 6,
It comprises a buzzer 7 and an alarm lamp 8.

The switch switching unit 2-2 further includes an engine switch switching unit 2-2a and a warning switch switching unit 2-.
2b or the like. The switch switching unit 2-2 is actually attached to the seat belt end.
It is arranged at a position where it is physically impossible to connect with the switch unit 2-1 unless the seat belt is worn.

Switch section 2-1 and switch switching section 2-2
When and are not connected to each other, the engine switch 2-1a is always off and the warning switch 2-
1b is always on. Then, from this state, the switch section 2-1 and the switch switching section 2-2 are connected to each other (hereinafter, referred to as "connecting the safety switch 2").
Then, the engine switch 2-1a is switched from OFF to ON by the engine switch switching unit 2-2a, and the warning switch 2-1b is turned ON by the warning switch switching unit 2-2b.
Switching from N to OFF.

As described above, the circuit according to one embodiment of the present invention is divided into the above-described systems I and II.
N / OFF switching is performed.

By the way, the ignition switch of an automobile is normally turned on by inserting a key and then turning it by turning it to the right, and the switch is turned on. The electrical components of the automobile such as the automobile radio, air conditioner, and instrument panel display, and the automobile engine are turned on. The engine control unit that performs the control is turned on.

From this state, when the key is further turned to the right, a starter motor (not shown) is turned. The starter motor is a device for assisting the engine start. Usually, at the stage before turning the starter motor, the ignition switch is turned on as described above, so that the power is connected to the engine control unit and the engine control unit is turned on. It is in a state. Therefore, the engine starts by turning the starter motor in this state.

In the following, each embodiment of the circuit of FIG. 1 will be described for one embodiment of the present invention. First, the above-mentioned system I
The circuit will be described. The battery power source 1 is a direct current power source such as an automobile battery, and a positive electrode is connected to the ignition switch 3. The ignition switch 3 is as described above.

As described above, the engine switch 2-1a is normally in the OFF state. However, when the safety switch 2 is connected with the seat belt fastened, the engine switch 2-2a switches from OFF to ON. Switch.

When both the engine switch 2-1a and the ignition switch 3 are turned on, the voltage of the battery power supply 1 is applied to the engine control unit 4, and the engine can be started. Therefore, if the ignition key is further turned in this state to turn the starter motor,
The engine will start.

That is, the safety switch 2 can be connected by the driver wearing the seat belt as described above. Therefore, when the safety switch 2 is connected, the engine switch 2-1a becomes the engine switch switching section 2-2a. Switches from OFF to ON. In this state, the driver turns the ignition key to turn on the ignition switch 3.
Then, the voltage of the battery power supply 1 is applied to the engine control unit 4 and the engine can be started. On the contrary, if the driver does not wear the seat belt, the safety switch 2 cannot be connected, and the engine switch 2-1a remains in the OFF state. Therefore, even if the ignition key is turned to turn on the ignition switch 3, the voltage of the battery power source 1 is not applied to the engine control unit 4, so that the engine cannot be started even if the starter motor is turned in this state.

Next, the circuit of the system II will be described. The voltage of the battery power supply 1 is not applied to the radio 5 when the ignition switch 3 is in the OFF state.
Turn the ignition key to turn the ignition switch 3 to O.
When N is set, the voltage of the battery power supply 1 is applied to the radio 5 and is also applied to the warning switch 2-1b via the radio 5. The warning switch 2-1b is as described above. The seat switch 6 is a push button switch installed at a predetermined position on the driver's seat,
This is a switch that switches from OFF to ON when the driver sits on the seat.

The buzzer 7 sounds when the voltage of the battery power supply 1 is applied. Similarly, the alarm lamp 8 is an alarm lamp that is turned on when the voltage of the battery power supply 1 is applied.

Here, when the seat belt is not fastened, that is, when the safety switch 2 cannot be connected, the warning switch 2-1b is in the ON state, and the ignition switch 3,
By turning on the seat switch 6, all three switches in the circuit of system II are turned on, the voltage of the battery power source 1 is applied to the buzzer 7 and the alarm lamp 8, the buzzer 7 sounds, and the alarm lamp 8 lights up. Will be done.

The above description will be described in other words. When a driver attempts to start an engine of a vehicle, it is common to first sit down on a seat, insert a key into an ignition switch, and then turn the key. At this time, the seat switch 6 is turned on by sitting on the seat. Further, when the ignition key is turned to start the engine, the ignition switch 3 is also turned on. At this time, if the driver does not wear the seat belt, that is, if the safety switch 2 is not connected,
Since the warning switch 2-1b is ON, the system II
At this time, the seat switch 6, the ignition switch 3, and the warning switch 2-1b, which are the switches of the above circuit, are all turned on. Therefore, when the engine is started when the seat belt is not attached in this way, the buzzer 7 sounds and the alarm lamp 8 is turned on at an intermediate stage. Further, in this state, the engine switch 2-1a is in the OFF state, and the engine will not start even if an attempt is made to start the engine.

As described above in detail, when the seat belt is not attached, that is, when the safety switch 2 is not connected, if the ignition key is turned to start the engine, the engine does not start and the buzzer sounds. The alarm lamp lights up.

FIG. 2 is an actual layout diagram of a vehicle starting safety device according to one embodiment. In the figure, the same parts as those in FIG. 1 are designated by the same reference numerals. Regarding the wiring of the circuit of the same figure, the circuit of system I in the description of FIG. 1 is shown by a solid line, the circuit of system II is shown by a dashed line, and the wiring common to both circuits of system I and II is It is indicated by a broken line.

In FIG. 2, a seat switch 6 which is a push button switch is installed at a predetermined position of the seat 10 so that when a person sits on the seat, the switch is pushed and the seat is switched from OFF to ON. It has become.

As shown in the drawing, the seat belt 11 has a male connector portion 11-2 fixed to a belt portion 11-1.
In general, the male connector portion 11-2 and the female connector portion 11-3 are connected so that a seat belt can be worn. The switch switching section 2-2 is attached to the belt section 11-1 at a position close to the male connector section 11-2.

On the other hand, a switch portion 2-1 is attached near the female connector portion 11-3 of the seat belt shown in FIG. The switch section 2-1 is connected to the male connector section 11- of the seat belt 11 when the seat belt is fastened.
2 is installed at a position where it can be connected to the switch switching unit 2-2 when the female connector unit 3 and 2 are connected. Here, the switch section 2-1 is not fixed to the position shown in the figure and can be freely moved to some extent. However, depending on the length of the wiring cord connected to the switch section 2-1, The range of movement is limited. When the seat belt is worn, the switch switching unit 2-2 comes within this range, so that the switch unit 2-1 and the switch switching unit 2-2 can be connected.

Various wires from the switch section 2-1 are connected to an engine control section 4, a radio 5, an ignition switch 3, and a seat switch 6, as shown in FIG.

FIG. 3 is a perspective view of a specific example of the switch section 2-1 and the switch switching section 2-2. Switch part 2-1
Is composed of a socket 20, a door switch 21, and a stopper 26. The door switch 21 is normally in an ON state like a switch attached to a car door for detecting a half-door of the car, but when the switch is pressed, the connection is cut off and the door switch 21 is turned OFF. Switch. The socket 20 is a socket used for a normal household outlet. The stopper plate 26 is a single metal plate whose central portion is curved and protrudes.

The switch switching section 2-2 includes a plug 22 at a position facing the socket 20, a wall surface 23 at a position facing the door switch 21, a stopper 25 at a position opposing the stopper 26, Belt part of seat belt 11
-1 through which the belt passes.

The circuit of the plug 22 is short-circuited inside, and the circuit is connected by connecting the socket 20 and the plug 22. The door switch 21 is a switch that connects the switch unit 2-1 and the switch switching unit 2-2 to each other so that the switch is pushed by the wall surface 23 and the circuit can be disconnected.

The stopper 25 is composed of two disks.
A predetermined gap is formed between the disks. When the switch unit 2-1 and the switch switching unit 2-2 are connected, the protrusion of the stopper 26 is inserted into this gap while being slightly deformed, so that the switch unit 2-1 and the switch switching unit 2- 2, the connected state is maintained. However, the holding force for maintaining the above-mentioned connected state by the stopper plates 25 and 26 is such that the male connector portion 11-2 is pulled to the original predetermined position when the seat belt is disconnected, and the holding force is released. It is a thing.

Now, the structure of the door switch 21 will be described. 4 (a) and 4 (b) are perspective views of an example of the door switch 21, FIG. 4 (a) shows a normal state, and FIG. 4 (b) shows a safety switch 2 connected.

In the figure, a push button 30 is provided with a projection 30a.
And a contact portion 30b, and a part of the protrusion 30a is exposed to the outside of the cover 35. Also, the contact portion 30b,
The metal pieces 31 and 32 are made of a conductive metal material such as copper. One end of a spring 34 is fixed at a predetermined position on the bottom of the contact portion 30b, and the other end of the spring 34 is fixed inside the bottom of the cover 35.

As shown in FIG. 4 (a), the push button 30 is normally pushed upward by the urging force of the spring 34, and the contact portion 30b is pushed against one end of the metal pieces 31, 32. The metal piece 3 through the contact portion 30b.
1 and the metal piece 32 are in a conductive state. Therefore, the door switch 21 is in the ON state.

Switch section 2-1 and switch switching section 2-2
4B, the projection 30a is pushed by the wall surface 23 as shown in FIG. 4B, the push button 30 moves downward against the urging force of the spring, and the contact portion 30b moves the metal piece 31,
Leave 32. Therefore, the metal piece 31 and the metal piece 32 become non-conductive, and the door switch 21 is turned off.

The socket 20 and the plug 22 described above are respectively the engine switch 2-1 in the description of FIG.
It is a specific example of a and the engine switch switching part 2-2a.
The door switch 21 and the wall surface 23 are specific examples of the warning switch 2-1b and the warning switch switching unit 2-2b in the description of FIG. 1, respectively.

Therefore, when the socket 20 and the plug 22 are connected by connecting the switch unit 2-1 and the switch switching unit 2-2 to each other, the circuit is short-circuited inside the plug 22. Since one system I circuit is connected, the engine can be started.

Further, by connecting the switch unit 2-1 and the switch switching unit 2-2 to each other, the push button of the door switch 21 is hit against the wall surface 23 and pressed, so that the connection of the door switch 21 is cut off. . That is, since the connection of the circuit of the system II in FIG. 1 is disconnected, the buzzer does not sound and the warning lamp does not light even if the driver turns the ignition key 40 while trying to start the engine.

As described above, by mounting the seat belt, the switch section 2-1 and the switch switching section 2-2 can be connected to each other, and the engine can be started. At the same time, the alarm by the buzzer and the lamp is released.
Conversely, the engine of the automobile cannot be started unless the seat belt is fastened, and at the same time, if the engine is attempted to start, the alarm will be issued twice by the buzzer and the lamp.

On the other hand, if there is no person in the driver's seat, the seat switch is in the OFF state. In this state, for example, a person in the passenger seat turns on the ignition switch 3 in order to listen to the radio. However, the buzzer and the lamp do not operate, and the user can freely listen to the radio.

The present invention is not limited to the configuration of the embodiment described above. For example, in place of the radio 5, any electric component of a vehicle such as an air conditioner to which power is supplied by turning on an ignition switch can be used.

The structure of the door switch is not limited to the structure shown in FIG. The switch is normally in the ON state, but any switch may be used as long as the switch is turned off by pressing the switch or by connecting the switches to each other. Alternatively, a combination of a light-emitting / light-receiving optical sensor pair and a plate or the like for preventing this light may be used.

The seat switch is not limited to the push button switch. For example, any device can be used as long as it detects that a person is sitting on the seat and turns on the switch by using a pressure detection sensor.

The switch section 2-1 may be arranged so as to be connected to the female connector of the seat belt. Further, specific examples of the engine switch and the engine switch switching unit are not limited to the plug and the socket.

For example, a push button switch such as a sheet switch and a wall surface may be used. In addition, anything may be used as long as the switches are switched from OFF to ON by being connected to each other.

[0054]

As described above in detail, according to the present invention, if a pair of switches are arranged so that they cannot be connected to each other unless a seat belt is fastened, the switches must be connected to each other. Even if the ignition key is used to turn on the starter motor, the engine will not start, and at the same time a double warning will be given by the buzzer and the lamp that the seat belt is not installed. Can be made.

Therefore, in the event of an accident, it is possible to contribute to protecting the lives of passengers and ensuring safety.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an automobile starting safety device according to an embodiment.

FIG. 2 is an actual layout view of the vehicle start-up safety device according to one embodiment.

FIG. 3 is a perspective view of a specific example of a safety switch.

FIG. 4 is a perspective view of an example of a door switch. (A) is a normal time, (b) is a safety switch connection.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery power supply 2 Safety switch 2-1 Switch part 2-1a Engine switch 2-1b Warning switch 2-2 Switch switching part 2-2a Engine switch switching part 2-2b Warning switch switching part 3 Ignition switch 4 Engine control part 5 Radio 6 Seat switch 7 Buzzer 8 Alarm lamp 10 Seat 11 Seat belt 11-1 Belt section 11-2 Male connector section 11-3 Female connector section 20 Socket 21 Door switch 22 Plug 23 Wall surface 24 Belt through hole 25, 26 Clasp 30 Push Button 30a Projecting part 30b Contact part 31, 32 Metal piece 33 Lead wire 34 Spring 40 Ignition key

Claims (2)

[Claims] 1. A switch portion provided on a seat belt receiving side for fitting with a seat belt wearing end, and an ON / OFF state of the switch portion attached to the seat belt wearing end when the seat belt is worn. A vehicle start safety device comprising: a switch switching unit; and an engine start control circuit for switching engine start control from OFF to ON based on a state of the switch unit switched by the switch switching unit. 2. An alarm circuit for detecting that a driver is seated on a seat and switching the control of a buzzer and an alarm lamp from OFF to ON, and a state in which the switch section is switched by the switch switching section. The vehicle start safety device according to claim 1, further comprising: a safety confirmation circuit for switching the control of the buzzer and the alarm lamp by the alarm circuit from ON to OFF.