JPH0335823Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a transmitter for a remote unlocking device for vehicles, and in particular, a transmitter for remotely unlocking a vehicle using radio waves, infrared rays, or ultrasonic waves as a medium. The present invention relates to a transmitter for a vehicle remote unlocking device suitable for use in a vehicle.

[Conventional technology]

As shown in Figure 4, the conventional device is configured to be portable and uses a dedicated key code by infrared rays, radio waves,
A transmitter 10 that transmits using ultrasonic waves or the like;
The door lock device 12 is comprised of a receiver 14 that receives a transmission signal from the door lock device 12 and controls the operation of the door lock device 12 based on the received signal.

As shown in FIG. 5, the transmitter 10 is configured to be portable, and is configured to transmit a dedicated key code by operating a switch 16. Further, the receiver 14 includes a receiving circuit 18 and a control circuit 20 and is mounted on a vehicle. For this reason,
If the driver carries the transmitter 10 and operates the switch 16, the vehicle can be unlocked and locked remotely.

[The problem that the idea aims to solve]

However, since the driver has to carry both the transmitter 10 and the mechanical ignition key, even if the vehicle can be unlocked and locked remotely, it is still inconvenient for the driver. was.

For example, even if you have the transmitter 10, you may forget to have the ignition key with you, or conversely, even if you have the ignition key, you may forget to have the transmitter 10 with you. Ta.

Incidentally, the method described in Japanese Utility Model Application Publication No. 59-44860 also has similar problems.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide a remote unlocking/locking device for a vehicle that can eliminate the inconvenience of having an ignition key and a transmitter separately. The aim is to provide the opportunity.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a transmitter that transmits a signal instructing the unlocking means of the vehicle to unlock or lock, and a transmitter that is mounted on the vehicle and receives the transmitted signal from the transmitter and transmits the signal to the unlocking means. In a remote unlocking device for a vehicle having a receiver that outputs an unlocking signal or a locking signal, an antenna coil is formed in a part of the ignition key, and the part of the ignition key that is inserted into the keyhole is Store the ignition key's antenna coil in the exposed state inside the transmitter and fix it to the transmitter, connect the antenna coil inside the transmitter to the radio wave transmitter of the transmitter, and use the ignition key as an antenna. This is a transmitter of a remote unlocking device for a vehicle characterized by the following features.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

In this embodiment, as shown in FIG. 2, a mechanical ignition key 30 is integrally attached to a transmitter 10, and the configuration of the receiver is the same as that of the conventional one. A description of the configuration of the receiver will be omitted.

As shown in FIG. 1, the transmitter 10 includes an upper case 32, a lower case 34, and a switch 1.
6. It has an LSI 36 that constitutes a microcomputer, and the switch 16 and LSI 36 are connected to the circuit board 4.
It is implemented on 2. The circuit board 42 has screws 60
is fixed to the lower case 34 by. Batteries 46, 48, and 50 are housed in the space between the circuit board 42 and the side wall of the lower case 34, and power is supplied to the LSI 36 and the like through contacts 52. An operation button 16a is attached to the switch 16 on the circuit board 42.

Further, a rectangular antenna coil 30A is formed at the base end of the ignition key 30. In order to store the ignition key 30, a flat partition plate 64 is provided in the lower case 34, and a storage chamber 6 is provided at the bottom of the partition plate 64.
6 is formed. This storage chamber 66 is a space in which the ignition key 30 fixed to the lower case 34 can be stored. Further, the antenna coil 30A is provided with screw holes 30B and 30C, and the partition plate 64 is provided with through holes 64a and 64b. For this reason, after mounting the circuit board 42 on the partition plate 64 and further mounting the upper case 32, the screw holes 32b of the upper case 32,
Insert the screw 60 from 32c and attach the upper case 3.
2 to the lower case 34, the key holder 30 can be fixed to the partition plate 64.

Further, in this embodiment, as shown in FIG. 3, the radio wave transmitter 70 is mounted on the circuit board 42, and the antenna coil 30A is connected to the lower case 3.
4, the antenna coil 30A is fixed to screw 6.
0 to the radio wave transmitter 70, and is configured so that a dedicated key code is transmitted from the antenna coil 30A.

As described above, according to the present embodiment, the ignition key 30 is integrally fixed to the transmitter 10 as a component of the transmitter 10, and therefore the transmitter 10 and the ignition key 30 can be separated from each other. This eliminates the inconvenience of having to carry one. Also, since the ignition key 30 is used as an antenna, if you operate the transmitter 10 with the tip of the key 30 facing the vehicle's receiver,
Radio waves can be emitted from the key 30. This operation closely matches the behavior of a driver when approaching a vehicle while holding the key grip.
Even if the antenna has strong directivity, radio waves can be transmitted and received reliably, and even if the key 30 is integrated with the transmitter 10, the shape is almost the same as a normal key. It is also possible to store the key in the ignition key, and it can easily maintain the same strength as a normal ignition key against twisting.

[Effect of idea]

As explained above, according to the present invention, the ignition key and the transmitter are integrated and the ignition key is used as an antenna for the transmitter, so the transmitter and the ignition key can be operated separately. This eliminates the inconvenience of having to carry the ignition key, and it also becomes possible to store the ignition key integrated with the transmitter in a normal key holder.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a transmitter exemplifying an embodiment of the present invention, Fig. 2 is a perspective view of the transmitter, Fig. 3 is a circuit configuration diagram of the transmitter, and Fig. 4 is a conventional configuration diagram. FIG. 5 is a perspective view of a conventional example. 10...Transmitter, 14...Receiver, 30...Ignition key, 30A...Antenna coil,
32... Upper case, 34... Lower case.

Claims (1)

[Scope of utility model registration request] A transmitter that transmits a signal instructing unlocking or locking to the unlocking means of the vehicle; and a receiver mounted on the vehicle that receives the transmitted signal from the transmitter and outputs an unlocking signal or a locking signal to the unlocking means. In the remote unlocking device for a vehicle, an antenna coil is formed in a part of the ignition key, and the antenna of the ignition key is exposed with the part of the ignition key that is inserted into the keyhole exposed. A remote unlocking/unlocking system for a vehicle, characterized in that a coil is housed in a transmitter and fixed to the transmitter, an antenna coil in the transmitter is connected to a radio wave transmitter of the transmitter, and an ignition key is used as an antenna. Device transmitter.