JPH0256469B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a keyless entry device in which a number input operation keyboard switch is arranged at or near the door of a car, and the door is unlocked by a password instead of the car key, and can be operated even at night. The aim is to provide something that is easy to use and has low power consumption.

Recently, as shown in Fig. 1, a number input operation keyboard switch 1 has been placed near the door handle, so that if the driver locks the car with the key in the car, the user can input the PIN number. A keyless entry device for an automobile has been developed which unlocks a door by inputting an input from an operating keyboard switch 1.

However, with the conventional type, when trying to press the number input operation keyboard switch 1 at night, there were problems such as being unable to locate the number input operation keyboard switch 1 because it was dark or making a mistake in key operation.

The present invention eliminates the above-mentioned conventional drawbacks, and aims to provide a keyless entry device for automobiles that can be operated reliably even at night.

In order to achieve the above object, the present invention is characterized in that a number input operation keyboard switch having a cover is provided in a part of the door, and the number input operation keyboard switch is illuminated when the cover is opened. It is.

Embodiments of the present invention will be described below with reference to FIGS. 2 and 3.

First, in FIG. 2, 2 is a door of an automobile, and a case 3 made of magnetic metal is embedded in the door 2. This case 3 incorporates a number input operation keyboard switch 4 constructed using a flexible printed circuit board for inputting a password, and a lead wire 5 is drawn out from this number input operation keyboard switch 4 to connect a memory circuit or a lock. It is connected to a main body circuit 6 consisting of a release drive circuit and the like.

In addition, this number input operation keyboard switch 4
A light source 7 for illumination such as a light emitting diode is provided in a part of the frame, and a frame-shaped light guide plate 8 is arranged on the light source 7 for illumination, and the light from the light source 7 for illumination is guided to the light guide plate 8. The light guide plate 8 illuminates the entire operation surface of the number input operation keyboard switch 4.

A switch 10 is connected to the illumination light source 7 via a lead wire 9, and this switch 10 is attached to a part of the case 3. A lid 12 is rotatably connected to the case 3 via a pivot 11, and a magnet 13 is embedded in a part of the lid 12. When the lid 12 is opened, the magnet 13 is attracted to the case 3. is opened and latched open. Further, by opening the lid 12, the switch 10 is turned on.

With this configuration, if the door 2 is locked with the car key inside the car, when the lid 12 is opened, the lid 12 will come into contact with the switch 10, turning the switch 10 ON, and the magnet 13 will turn on. It is attracted to the case 3, the lid 12 is latched in an open state, and the magnet 13 causes the switch 10 to be
is latched in the ON state. The above switch 10
When turned on, the illumination light source 7 is turned on, and the light guide plate 8
The number input operation keyboard switch 4 is illuminated, and when a predetermined password is entered, the signal is sent to the main body circuit 6. If the number matches the stored number, the unlock drive circuit is activated and the door is opened. Remove the 2nd trick.

When the lock is released, the lid 12 is closed, the switch 10 is turned off, and the illumination light source 7 is turned off.

In addition, the one shown in FIG. 3 has a configuration in which the number input operation keyboard switch 4 is made translucent, several illumination light sources 7 are arranged inside the number input operation keyboard switch 4, and the light guide plate 8 is eliminated. That is.

Since the automobile keyless entry device of the present invention is configured as described above, even if the driver puts the car key inside the car at night and locks the door, the number input operation keyboard switch will not be illuminated by opening the lid. In addition, the magnet attached to the lid latches the lid in the open position, allowing you to enter your password accurately and easily, ensuring the door is unlocked, and closing the lid will turn off the lights. Since this process is discontinued, the power consumption is also small, which is of great industrial value.

[Brief explanation of the drawing]

FIG. 1 is a front view of a conventional keyless entry device for an automobile, FIG. 2 is a sectional view showing one embodiment of the keyless entry device for an automobile of the present invention, and FIG. 3 is a sectional view of another embodiment. 2... Door, 3... Case, 4... Number input operation keyboard switch, 5... Lead wire, 6...
Main circuit, 7... Light source for illumination, 8... Light guide plate, 9
... Lead wire, 10 ... Switch, 11 ... Pivot, 12 ... Lid, 13 ... Magnet.

Claims (1)

[Claims] 1 A case made of at least magnetic metal, a number input operation keyboard switch built into the case, a lid attached to the case so as to be openable and closable, a magnet attached to the lid, and the magnet attracted to the case. When the lid is latched open,
A keyless entry device for an automobile comprising a switch mounted on the case that is turned on when it comes into contact with the lid, and an illumination light source that is connected to the switch and illuminates the number input operation keyboard switch section.