JPH017610Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door ajar warning device for a vehicle, and more particularly to a device for warning a driver of the ajar state of a vehicle door.

When getting into or out of a vehicle, if the occupant closes the vehicle door insufficiently, the door may remain ajar, and the driver may drive the vehicle without noticing this.

In order to prevent the vehicle from driving with the door ajar, an increasing number of vehicles are equipped with a device that warns the driver that the door is ajar.

Conventionally, such door ajar warning devices for vehicles have either alerted the driver to the ajar condition by lighting up a warning light installed on the front panel, or used a speak monitor to detect the ajar condition after the vehicle has started. Vehicles were prevented from driving with their doors left ajar by providing audible warnings.

However, with the device that warns the driver with the warning light mentioned above, the driver may drive without noticing the warning light being lit, and with the device that warns with a speak monitor, These conventional devices have a drawback in that they cannot reliably warn of a door ajar condition before the vehicle starts.

The present invention has been devised in view of the above-mentioned conventional problems, and its purpose is to provide a vehicle door ajar warning device that can reliably warn the driver of the ajar state before the vehicle starts.

In order to achieve the above object, the present invention has a door ajar warning chime, a first door switch that is connected in series with the door ajar warning chime and is turned off when the vehicle door is fully opened when getting in or out, and a door ajar warning chime and a first door switch. a second door switch that turns off the relay switch only when the vehicle door is fully closed; and a second door switch that turns on the first door switch when the vehicle door is ajar; The door ajar warning chime is activated by turning on the two-door switch and turning on the relay switch.

Preferred embodiments of the present invention will be described below based on the drawings.

The figure shows a preferred embodiment of the door ajar warning device for a vehicle according to the present invention, and in this embodiment, the door ajar warning chime 10 is also used as a vehicle speed warning chime 10. In other words, in order to warn the driver that a predetermined vehicle speed has been reached and ensure safety while the vehicle is running, a vehicle speed warning signal 1 is installed on the front panel.
0, and a vehicle speed warning switch 12 is connected in series to this vehicle speed warning chain 10. Then, the vehicle speed warning switch 12 is turned on when the vehicle speed reaches a predetermined speed, and the current of the battery 14 is turned on to the ignition switch 16 and the diode 1.
The signal is supplied to the vehicle speed warning signal 10 via the signal line 8, and the operation of the vehicle speed warning signal 10 can warn the driver that a predetermined vehicle speed has been reached.

In order to warn the driver that the vehicle door is in the ajar state, a door ajar warning chime 10 is provided, and in this embodiment, the door ajar warning chime 10 is combined with the vehicle speed warning chime 10 as described above. It is also used. Further, a first door switch 20 is connected in series to the door ajar warning chime 10 in the vehicle door, which is turned off when the vehicle door is fully opened when getting on or off the vehicle, and turned on when the door is closed or left ajar. A relay switch 22 is provided between the door ajar warning chime 10 and the first door switch 20.
2 has a relay contact 24 connected in series to the door ajar warning chime 10 and a relay coil 26 for driving this relay contact 24. Further, the vehicle door is provided with a second door switch 28 that turns on the relay switch 22 when the vehicle door is opened or ajar, and turns off the relay switch 22 only when the door is fully closed. are connected in series to the relay coil 26 of the relay switch 22. In this embodiment, the second door switch 28 also serves as an interior light switch 28 that turns on and off the interior light 30. Note that the relay coil 26 of the relay switch 22
A diode 32 for preventing backflow is connected in parallel with the diodes 32 and 32 .

As described above, the features of the present invention include the door ajar warning chime 10 and the door ajar warning chime 1.
a first door switch 20 that is connected in series with 0 and is turned off when the vehicle door is fully opened when getting on or off the vehicle, a relay switch 22 that is provided between the door ajar warning chime 10 and the first door switch 20, and a relay switch that is activated only when the vehicle door is fully closed. A second door switch 28 that turns off the door 22 is provided, and the door ajar warning chime 10 can warn the driver that the vehicle door is ajar.

The embodiment of the present invention has the above configuration, and its operation will be explained below.

When opening the vehicle door, which is necessary for getting on and off the vehicle, the second door switch 28 is turned on and the relay contact 24 of the relay switch 22 is turned on.
Since the first door switch 20 is turned off,
The current of the battery 14 does not flow to the door ajar warning chime 10, and this door ajar warning chime 10 does not operate.

If the vehicle door becomes ajar when the vehicle door is closed from the open state, the first door switch 20 is turned on, the second door switch 28 is turned on, and the relay contact 24 of the relay switch 22 is turned on. When the ignition switch 16 is turned on and the vehicle is started, current from the battery 14 is supplied to the door ajar warning signal 10 via the ignition switch 16 and the diode 18, Door warning chime 10 is activated. Therefore, the driver can know that the vehicle door is in the ajar state, and can start the vehicle after closing the vehicle door again.

When the vehicle door is fully closed, the first door switch 20 is turned on, but the second door switch 28 is turned off, so the relay switch 2 is turned on.
The relay contact 24 of No. 2 is turned off, and the door ajar warning chime 10 is not activated.

Note that even in normal vehicle door opening/closing operations, the door passes through the ajar state, but the time it takes to pass through this door ajar state is extremely short, so even if the ignition switch 16 is turned off, However, the time period during which the door ajar warning chime 10 is activated is extremely short, and the driver will not mistakenly believe that the door is ajar.

In this way, in the present invention, the door ajar state can be reliably detected by the combination of the two door switches 20 and 28, and when the ignition switch 16 is turned on, the door ajar warning chime 10 can detect the ajar state. By giving an audible warning,
To reliably warn a driver of a door ajar state before starting a vehicle.

Furthermore, in this embodiment, the door ajar warning chime 10 is also used as the vehicle speed warning chime 10, and the second door switch 28 is also used as the interior light switch 28, so existing equipment can be used.
It is possible to warn of a door ajar condition with an extremely simple configuration.

As explained above, according to the present invention, the door ajar state is reliably detected by the combination of the first door switch and the second door switch, and the door ajar state is audibly warned by the door ajar warning chime. To reliably warn a driver of a door ajar state before starting a vehicle.

[Brief explanation of the drawing]

The figure is a circuit diagram showing a preferred embodiment of the door ajar warning device for a vehicle according to the present invention. 10...Door ajar warning chime, 20...1st door switch, 22...Relay switch, 28...
2nd door switch.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A door ajar warning chime, a first door switch that is connected in series with the door ajar warning chime and is turned off when the vehicle door is fully opened when getting in or out, and a door ajar warning chime and the first door switch. a second door switch that turns off the relay switch only when the vehicle door is fully closed; and a second door switch that turns on the first door switch when the vehicle door is ajar; A door ajar warning device for a vehicle is characterized in that a door ajar warning chime is activated by turning on a door switch and turning on a relay switch. (2) A vehicle door ajar device according to claim (1), characterized in that the ajar door warning chime also serves as a vehicle speed warning chime that warns the driver that a predetermined vehicle speed has been reached. Warning device. (3) A vehicle door ajar warning device according to claim (1), characterized in that the second door switch also serves as an interior light switch that turns on and off an interior light.