JPH0110032Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a storage cartridge attachment/detachment structure, and in particular, it is designed to be able to operate without loading a storage cartridge, such as a personal radio, and to easily remove the storage cartridge once loaded. Regarding things that have become impossible to do.

In recent years, personal radios have been approved as a means of communication that does not require radio operator qualifications. this is
Although it is a simple radio that uses the 900MHz band, new methods have been adopted to prevent the increase in the number of unlicensed and illegal stations like the old citizen radio. In other words, the main body of the radio is a ROM (Read Own Memory) issued through a prescribed procedure.
It is designed to not operate unless a cartridge is attached, and when transmitting, the call sign stored in the ROM cartridge is automatically transmitted, making it possible to immediately identify the source of the radio waves. .

Therefore, it goes without saying that once the ROM cartridge is installed, it should not be easily removed, but in the event of a malfunction of the ROM cartridge or a change in the license details, it is necessary to It is necessary to make it easy for those who have it to remove it.

The present invention has been developed in view of the above-mentioned problems, and its purpose is to prevent the above-mentioned ROM cartridges and other storage cartridges from being easily removed, and to make it possible for manufacturers, etc., who have a legitimate reason for removing them, to The object of the present invention is to provide a wireless storage cartridge attachment/detachment structure that allows the storage cartridge to be easily removed.

Hereinafter, the configuration of the present invention will be explained based on FIGS. 1 and 2.

In the figure, 1 is a case of the radio, and 2 is a storage cartridge loaded into the case, which can be inserted into the case 1 from the direction of arrow A. 3
is an electric locking mechanism provided inside the case 1 that engages with the inserted storage cartridge 2 and makes it impossible to remove it; in the illustrated example, it engages directly with the storage cartridge 2. An electromagnetic plunger 4, a frequency control keyboard 5 provided on the radio, a password code memory 6, a code comparison circuit 7, and a drive circuit 8 for the electromagnetic plunger 4.
It is composed of. Of course, a ROM (read-only memory) can be used as the password code memory 6, and a RAM (random access memory) can also be used to arbitrarily set the password by operating the keyboard 5. The PIN code can be a specific code from among the numeric symbols shown on the keyboard 5, for example,
MR358M is set, and this pin code is input to the code comparison circuit 7. A code from the keyboard 5 is also input to the code comparison circuit 7, and it is determined whether the input code matches the code stored in the PIN code memory 6, and if they match, the code is inputted from the keyboard 5. Then, a signal to the effect of lock release is sent to the next stage drive circuit 8.

An engaging claw 9 is provided on the operating shaft of the electromagnetic plunger 4, and the memory cartridge 2 is held by engaging the engaging claw 9 with an engaging step provided on the storage cartridge 2 side. There is.

In response to the lock release signal, a current for driving the electromagnetic plunger 4 is sent from the drive circuit 8, and the engaging pawl 9 is retracted, thereby releasing the lock on the storage cartridge 2.

As described above, when removing the storage cartridge 2, it is necessary to input a predetermined password code, and it is impossible for the user to detect this password code and release the lock. However, when the manufacturer etc. cancels the lock, it can be canceled immediately without using any special jig, etc., and the pin code memory 6
Using RAM makes it easy to change the password code.

The above-mentioned electric lock mechanism 3 is not limited to the illustrated example, and the form of the password code may be of course arbitrary, as long as it is configured to be able to electrically release the lock.

According to the storage cartridge attaching/detaching device for a radio according to the present invention, the radio is set to an operable state by inserting the storage cartridge from outside the radio, and the storage cartridge can be easily removed. This is a storage cartridge attaching/detaching device for a wireless device which is designed to prevent the storage cartridge from being removed. Since the lock is provided, the lock can be easily released by using a frequency setting keyboard or the like and entering a password predetermined by the manufacturer or the like.

On the other hand, since the user cannot know the password, the storage cartridge cannot be removed illegally, and the occurrence of illegal transactions can be prevented.

In addition, since no special jigs or the like are required to release the lock, the device has excellent features such as allowing the manufacturer to quickly respond to repairs and the like.

[Brief explanation of drawings]

1 and 2 show an embodiment of the storage cartridge attachment/detachment device for a radio device according to the present invention, FIG. 1 is a sectional view showing the internal structure of the radio device, and FIG. 2 is a block diagram showing the electric lock mechanism. It is a diagram. 1: Radio case, 2: Storage cartridge,
3: Electric lock mechanism, 4: Electromagnetic plunger,
5: Keyboard, 6: PIN code memory, 7:
Code comparison circuit, 8: Drive circuit for electromagnetic plunger.

Claims (1)

[Claims for Utility Model Registration] As with personal radios, a wireless device is set to an operational state by inserting a storage cartridge from the outside, and the storage cartridge is not easily removed. A storage cartridge attaching/detaching device for a wireless device equipped with a storage device, which is equipped with an electric locking mechanism that engages with the inserted storage cartridge and makes it impossible to remove it. A storage cartridge attachment/detachment device featuring: