JPH0538478Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an optical card reading device that reads information from an optical card capable of optically recording and reproducing information.

[Prior art] Optical cards that can optically record and reproduce information are
It is extremely superior as a recording medium that can store much richer information than magnetic cards.

However, if the surface of an optical card becomes contaminated due to dust or direct contact with the card, it may become difficult to read the information recorded on the card, reducing the reliability of the recorded information. He has the weakness of losing his .

On the other hand, in order to prevent contamination of the optical cards, the present applicant has proposed a card case that stores such optical cards one by one.
However, the proposal did not go so far as to actively clean the card surface.

[Problems to be solved by the invention] By the way, as an attempt to actively clean the card surface, a cleaning roller is provided to contact the card surface and remove contamination immediately after the card is inserted into the card reader. has also been devised. However, if the reading operation is performed immediately after that, the cleaning liquid may remain, which is not preferable.

The present invention cleans the information recording surface of an optical card that has been contaminated by dust by blowing ionized air in the optical card reader before the reading process, and reproduces the recorded information. The aim is to obtain a device that ensures the

[Means for Solving the Problems] The present invention attempts to solve the above problems by having the following configuration.

An optical card reading device that reads information from an optical card capable of optically recording and reproducing information, wherein a partition is provided between a card insertion side side wall and a card reproducing/reading section, and the card insertion side side wall and the partition In the formed compartment, two static eliminating bars are arranged in parallel with a high potential difference facing the moving card information recording surface, and a fan is provided above the bar to prevent card insertion from the card insertion hole. In relation to this, the optical card reading device is characterized in that it is configured such that air ionized by the static eliminating bar is blown onto the moving card information recording surface from the static eliminating bar side.

[Function] Since the optical card reading device of the present invention is constructed as described above, the information recording surface of the optical card inserted into the card insertion slot is blown with ionized air. Since the static electricity is removed and the attached dust is removed, it is cleaned and the reproducing reading section in the next step can read information normally.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is an explanatory cross-sectional view of an embodiment, in which a card insertion slot 2 into which an optical card 14 is inserted is provided on one end surface of an optical card reading device 1, and an optical card 14 inserted therein is provided.
is sent to the reproducing/reading section 3 along the card running guide 8 by a card pulling roller appropriately provided inside the insertion slot 2. Reproduction reading section 3
For example, a light source 4 for card illumination, a light receiving element 5, a half mirror 6, and an objective lens 7 are provided.
Light from a light source 4 is applied to the information recording surface of the card to extract information as light, and the light is received by a light receiving element 5. Between the card insertion slot 2 and the reproduction/reading section 3, there is provided a static eliminating type dust removal section 9 that blows ionized air onto the information recording surface of the card.

The static elimination type dust removal section 9 is separated from the reproduction/reading section 3 by a partition wall 13, and a fan 10 is provided on the ceiling of the section, and external air is supplied to the air hole 11.
The electricity is sucked in and introduced by the rotating fan 10, ionized by two static eliminating bars 12 arranged in parallel with a high potential difference below, and passed downward along the card running guide 8. It is sprayed onto the surface of the optical card 14 passing through.

It goes without saying that the driving of the fan 10 and the supply of power to the neutralizing bar 12 are performed in a timely manner in conjunction with the insertion of the optical card 14.

[Effects of the invention] With the above structure, when an optical card is inserted into the card insertion slot of the optical card reading device of the invention, the card passes through the static eliminating dust removal unit 9 before being read and reproduced. When the card passes through the card, the dust attached thereto due to the charge on the card surface is easily removed because the charge is removed by the blowing of ionized air.

Therefore, the optical card reading device of the present invention can eliminate the possibility that dust adhering to the card surface will interfere with the reading of information written on the card in the next reproduction/reading section.

[Brief explanation of the drawing]

FIG. 1 is an explanatory cross-sectional side view of the optical card reading device of the present invention. DESCRIPTION OF SYMBOLS 1... Optical card reading device, 2... Card insertion slot, 3... Reproduction reading part, 4... Light source for card illumination, 5... Light receiving element, 6... Half mirror, 7
...Objective lens, 8...Card running guide, 9...
...Electrostatic dust removal unit, 10...Fan, 11...
Air hole, 12... Static elimination bar, 13... Partition wall, 14
...Light card.

Claims (1)

[Scope of utility model registration request] An optical card reading device that reads information from an optical card capable of optically recording and reproducing information, wherein a partition is provided between a card insertion side side wall and a card reproducing/reading section, and the card insertion side side wall and the partition In the formed compartment, two static eliminating bars are arranged in parallel with a high potential difference facing the moving card information recording surface, and a fan is provided above the bar to prevent card insertion from the card insertion hole. In relation to this, the optical card reading device is characterized in that it is configured such that air ionized by the static eliminating bar is blown onto the moving card information recording surface from the static eliminating bar side.