JPH0728614Y2 - Optical card drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an optical card driving device.

[Conventional technology]

Optical cards can record and reproduce a large amount of information, and are considered to have a wide range of uses such as cash cards, credit cards, ID cards, medical cards, electronic publishing, and documentation.

As an information recording / reproducing system using such an optical card, while moving the optical card in the track direction, information is optically recorded on a desired track by an optical head, or the recorded information is optically recorded. A device for reading is proposed, and as a card driving device in this case, an optical card is directly driven by a roller as disclosed in, for example, JP-A-54-12638 and JP-A-57-69370. Some adopt the card direct drive system.

FIG. 5 shows the structure of an optical card driving device of the card direct driving system. Rubber rollers 2a and 2b are arranged so as to contact the surface of the optical card 1, and these rubber rollers 2a and 2b are driven by a motor 3 to gear them. By rotating through the mechanism 4, the optical card 1 is driven by the friction between the rubber rollers 2a, 2b and the optical card 1. Also, optical card 1
Since one side surface 1a of the optical card 1 is used as a reference surface for positioning and transporting,
5a and 5b are arranged so that the optical card 1 is pressed from the other side surface 1b side so that the reference surface 1a contacts these reference rollers 5a and 5b.

[Problems to be solved by the invention]

However, in the above card direct drive method, the rubber rollers 2a and 2b are brought into contact with the optical card 1 to drive the optical card 1. Therefore, if foreign matter such as oil adheres to the optical card 1, There is a problem that the optical card 1 cannot be stably driven due to slippage between the card surface and the rubber roller surface.

As a solution to such a problem, there has been proposed a shuttle drive system in which the entire optical card is mounted on a mounting table (hereinafter referred to as a shuttle) and the shuttle is driven.
According to this shuttle drive system, even if foreign matter such as oil adheres to the optical card, the optical card can be stably driven without being affected by the foreign matter.

However, in this shuttle drive system, since the entire optical card is mounted on the shuttle, the shuttle is large and heavy, and a driving means for driving this requires a large driving force. Then, there is a problem that the whole is large and heavy.

The present invention has been made in view of such a conventional problem, and an optical card can be conveyed by a driving means in a non-contact manner. Therefore, even if foreign matter such as oil adheres to the optical card, it is affected. The optical card can be stably driven at all times, and the holding means of the optical card can be made smaller and lighter, so that the driving force of the driving means can be made smaller than that of the conventional shuttle drive system. The small,
It is an object of the present invention to provide an optical card drive device which is appropriately configured so as to be lightweight.

[Means and Actions for Solving Problems]

According to the present invention, in order to achieve the above object, in an optical card driving device in an information recording / reproducing device for recording / reproducing information on / from an optical card, the optical card is detachably held only at one side edge portion thereof. In addition, the holding means having a reference surface for positioning one side surface of the optical card, and the one side surface of the optical card which is provided separately from the holding means and is held by the holding means is the reference surface. A biasing means for biasing the optical card so as to abut,
Drive means for driving the holding means.

In this way, by driving the optical card through the holding means, the optical card can always be stably driven without being affected by foreign matter adhering to the surface thereof, and the holding means can be The holding means can be made compact by holding the optical card only at one side edge and providing the biasing means for positioning the optical card on the reference surface of the holding means separately from the holding means. The weight can be reduced, so that the driving force of the driving means can be made smaller than that of the conventional shuttle drive system, and the entire size and weight can be reduced.

〔Example〕

1 and 2 are a perspective view and a partial front view showing an embodiment of the present invention. In this embodiment, the optical card 11
A carrying member 12 is provided so as to be movable along the driving direction of the holding member, and the carrying member 12 holds the optical card 11 in a removable manner.
Provide 13. The conveying member 12 has one side surface in contact with the two guide rollers 14a and 14b and the other side surface to the guide rollers 14a and 14b.
A direction (tracking direction) orthogonal to the driving direction of the optical card 11 by contacting the guide roller 14c at approximately the middle of
The position of the optical card 11 is regulated while the lower surface is in contact with the two guide rollers 15a and 15b, and the upper surface is in contact with the drive roller 16 approximately in the middle of the guide rollers 15a and 15b.
The position in the vertical direction (focus direction) is regulated. The shaft 16a of the driving roller 16 is connected to a motor 18 via a gear mechanism 17, and the driving of the motor 18 drives the conveying member 12 integrally with the holding member 13.

A groove 19 into which one side edge of the optical card 11 is removably inserted is formed in the holding member 13, and a lower surface 19a in the groove 19 has an optical card as shown in a side view in FIG. Two protrusions 20a, 20b for guiding the insertion of the optical card 11 and correcting the warp of the optical card 11 are integrally formed. In addition, one side edge of the optical card 11 is effectively held by the holding member 13, and the upper surface of the optical card 11 is brought into contact with the upper surface 19b in the groove 19 to hold the holding member 13.
In order to perform positioning of the optical card 11 in the focus direction with respect to the card holding spring 21, a card holding spring 21 is provided on the lower surface of the holding member 13, and the card holding spring 21 passes through the opening 13a formed in the holding member 13 at approximately the middle of the protrusions 20a and 20b. The card 11 is brought into contact with the lower surface of the card 11 so that the optical card 11 is biased upward.

Further, in order to position the side surface of the optical card 11 with respect to the holding member 13, the pressing plate 22 is provided so as to face the holding member 13 and the optical card 11.
Is arranged so as to extend in the driving direction of the above, and the pressing plate 22 is biased toward the holding member 13 side by the spring 23. As is apparent from FIG. 1, the pressing plate 22 and the spring 23 are provided separately from the holding member 13. In this way, the other side surface of the optical card 11 whose one side edge is held by the holding member 13 is pressed toward the holding member 13 side by the pressing plate 22, whereby one side surface of the optical card 11 is moved to the side surface of the groove 19 ( The reference surface 19c is brought into contact with the holding member 13 to regulate the position of the optical card 11 in the tracking direction.

The transport member 12, the holding member 13, and the protrusions 20a and 20b are
The card holding spring is formed by integral molding of plastic such as polycarbonate or polyacetal in consideration of scratches on the optical card 11, weight reduction, mass productivity, etc.
The contact surfaces of the pressing plate 22 and the pressing plate 22 with the optical card 11 are coated with a fluororesin or the like to prevent the optical card 11 from being damaged.

As described above, even in the optical card driving device that drives the optical card through the holding member, the holding member 13 is shaped so as to be held only at one side edge portion of the optical card 11. In order to position the direction, the pressing plate 22 and the spring 23 that bias the optical card 11 to the reference surface 19c are attached to the holding member 1.
Since it is provided separately from 3, the holding member 13 can be made small and lightweight. Therefore, as the motor 18, the driving force is small,
A small one can be used, and the whole can be made small and lightweight.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications and changes can be made. For example, the holding member can be driven by forming a rack on the conveying member integrated with the holding member and engaging a pinion provided on the output shaft of the motor with the rack, or by using a belt or a chain as the conveying member. Alternatively, the holding member may be fixed and driven. In addition, as shown in FIG. 4, the card holding spring 21 shown in FIG. 3 is caulked with a pin 30 made of polyacetal plastic at a portion in contact with the back surface of the optical card in order to prevent damage to the optical card. It is also possible to fix it by such means. Further, the holding member may be shaped to hold a part of one side edge of the optical card.

[Effect of device]

As described above, according to the present invention, the optical card is driven via the holding means, so that the optical card is always stably driven without being affected by foreign matter adhering to the surface thereof. The holding means can be held only at one side edge of the optical card, and the biasing means for positioning the optical card on the reference surface of the holding means can be provided separately from the holding means. Since the holding means is provided, the holding means can be made smaller and lighter, and therefore the driving force of the driving means can be made smaller than that of the conventional shuttle drive system, and the whole can be made smaller and lighter.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a partial front view thereof, FIG. 3 is a side view of a holding member shown in FIG. 1, and FIG. 4 is a card holding shown in FIG. The figure which shows the modification of a spring, and FIG. 5 is a figure which shows a prior art. 11 …… Optical card, 12 …… Conveying member 13 …… Holding member 14a, 14b, 14c …… Guide roller 15a, 15b …… Guide roller 16 …… Drive roller 16a …… Axis, 17 …… Gear mechanism 18 …… Motor, 19 ... Groove 20a, 20b ... Protrusion 21 ... Card holding spring 22 ... Press plate, 23 ... Spring 30 ... Pin

Claims (1)

[Scope of utility model registration request] 1. An optical card driving device in an information recording / reproducing device for recording / reproducing information on / from an optical card, wherein the optical card is removably held only at one side edge portion thereof, and the optical card The holding means having a reference surface for positioning one side surface and the holding means are provided separately, and the optical card is held so that the one side surface of the optical card held by the holding means contacts the reference surface. An optical card driving device comprising: a biasing unit that biases a card; and a driving unit that drives the holding unit.