JPH0129646Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a card feeding device.

[Background technology] When reading data on a program card with a card reader, if the card shakes, reading errors are likely to occur.
Conventionally, a guide was required to place the card below the card reader to prevent shaking. However, due to the guide, it is not possible to design the device compactly.
When foreign matter such as dust adheres between the guide and the card, the card swings out and reading errors occur. Further, it has been considered to use a vacuum device to maintain a constant distance between the card reader and the card, but this has the problem of increasing the size of the device.

Conventional card feeding devices include a feeding roller that is placed behind the card reader and transports the card backwards, and a feeding roller that is placed in front of the card reader and rotates at a circumferential speed that is smaller than the circumferential speed of the feeding roller. and a presser roller that applies tension to the card between the card reader and the card surface to maintain a constant distance between the card reader and the card surface, and the tension applied to the card by the feed roller and the presser roller prevents the card from swinging. There is something I did. but,
In this case as well, a presser roller is required in addition to the feed roller, and a mechanism for rotating the presser roller is also required, which increases the size and weight of the device.Furthermore, the power consumption of the motor that rotates the feed roller and the presser roller increases. A problem arose.

[Purpose of the invention] The present invention was made in view of the above points, and its purpose is to prevent card shaking with a simple structure, reduce card reading errors, and To provide a card feeding device that can be designed to be small and lightweight, and consumes little power.

[Disclosure of the invention] (Example) An example of the invention will be described based on FIGS. 1 and 2. 2 is a reading card such as a program card, and a symbol 1 such as program data is written on the surface of this card 2. Above card 2
is inserted through the card guide 5 and sent out through the rear card guide 5'. 4 is a card reader disposed above the card 2 at a predetermined distance from the surface of the card 2;
illuminates the card 2 with light, receives the reflected light, and reads the program data of the card 2. Reference numeral 3 designates a pair of feed rollers disposed above and below the card 2. The feed rollers 3 press and hold the card 2 from above and below, and are driven by a motor 6 shown in FIG. The card 2 is rotated and transferred backward. Note that 7 in FIG. 4 is a wheel train that transmits the rotational force of the motor 6 to the feed roller 3. A presser metal fitting 9 having a pressing force smaller than the pressing force of the feed roller 3 on the card 2 is disposed upstream of the card reader 4. This presser metal fitting 9 holds the card 2 with a pressing force that does not stop the feeding roller 3 from transporting the card 2.
is holding down. Further, the presser metal fitting 9 is formed into a comb shape in which a plurality of small presser pieces 10 are formed to press the card 2 over almost the entire widthwise direction, and the tips of these presser pieces 10... are the data symbol 1. is pressed against the surface of card 2, which is not written on. Therefore, the data symbol 1 will not be damaged or changed.

FIGS. 3 to 7 show examples in which the above-mentioned card feeding device is attached to a timer incorporating an arithmetic processing unit such as a microcomputer. In FIG. 3, reference numeral 11 indicates a time display section of the timer, reference numeral 12 indicates operation buttons for correcting the time, day of the week, etc., and reference numeral 13 indicates a rack mount fitting. The card feeding device of the present invention is incorporated in one side of the main body 14 of this timer, and a card insertion slot 15 and a card ejection slot 16 are provided on one side of the front surface.
and. The card 2 inserted through the card insertion slot 15 changes direction while being bent inside the main body 14, and reaches the card extraction slot 16.

FIG. 4 shows an exploded perspective view of the internal structure, and FIGS. 5 to 7 show explanatory views of the operation. A photoelectric card reader 4 , a pair of feed rollers 3 located after the card reader 4 , and a presser metal fitting 9 located before the card reader 4 are installed in a conveyance path linearly continuous with the card insertion slot 15 . are arranged. Card guides 55' are provided on both sides of the conveyance path, except for a part of the conveyance path where these members are arranged, and the card 2 inserted from the card insertion slot 15 is driven by the feed roller 3 to move to the card guide 5'. While being guided by the card, the card is curved and directed toward the card ejection port 16 by changing its direction. Note that the holding metal fitting 9 clamps the card 2 with the card guide 5 and holds the card 2 down. Further, the card reader 4 reads the program data during this transportation. At this time, the card 2 that has been transferred to the position where it is nipped by the feed rollers 3 is transferred rearward while being pulled forward by the presser metal fitting 9 in the opposite direction to the transfer direction. Therefore, it is possible to prevent the card 2 from swinging due to tension being applied to the card 2, and therefore the distance between the surface of the card 2 and the card reader 4 is always constant. Moreover,
Since the presser metal fitting 9 presses substantially the entire surface of the card 2 in the width direction, it is possible to prevent the card 2 from swinging in the width direction, thereby reducing data reading errors in the card reader 4. Control of the motor 6 that rotates the feed roller 3 via the wheel train 7 and switch signals for starting and stopping the operation of the card reader 4 are performed using marks written at the beginning and end of the card 2. However, the stop signal is a delayed signal that causes the feed roller 3 to stop after the card 2 has passed.

As is clear from FIGS. 5 to 7, the curved portion of the card guide 5' that changes the conveyance direction of the card 2 toward the card ejection port 16 is provided on the side of the card ejection port 16 from the feed roller 3. . The distance from the feed roller 3 to the card ejection port 16 is slightly shorter than the total length of the card 2 in the conveying direction. Therefore, the card 2 is inserted into the motor 6 from the card insertion slot 15.
When the card 2 is inserted to the position where it starts rotating, the card 2 is fed by the feed roller 3 as shown in FIG. 5, and as the card reader 4 reads the symbol 1 written on the card 2, the card guide 5' The card 2 curves and changes direction as guided by the guide. When the feeding operation of the card 2 by the feeding roller 3 is completed, the front end of the card 2 faces the card ejection opening 16, and when the card 2 is taken out, reading is completed.

[Effects of the invention] As described above, the present invention includes a feed roller that grips and rotates a card such as a program card on which program data symbols are written and transports the card to the rear, and a card in front of the feed roller. A card reader is placed facing the card at a predetermined distance from the card surface and reads the data on the card, and a data symbol is placed in front of the card reader and uses a pressing force that is sufficient to transport the card by a feed roller. A plurality of presser pieces are formed to press the surface of the card that has not been written on, and a comb-shaped presser metal fitting is provided that presses the card over almost the entire widthwise direction, so that the card is transferred to a position where it is held between the feed rollers. The card is transferred backwards while being pulled forward by the presser metal fitting in the opposite direction to the transfer direction of the feed roller, which applies tension to the card and ensures that the distance between the card surface and the card reader is always constant. Furthermore, since substantially the entire surface of the card in the width direction is pressed down by the holding metal fitting, it is possible to prevent the card from swinging in the width direction, and therefore, there is an effect of reducing data reading errors in the card reader. In addition, by providing a presser metal fitting, there is no need to provide a presser roller as in the past, which reduces the load on the motor and reduces power consumption.The device can also be made smaller and lighter, and can be used in rack-mounted equipment, etc. This has the effect of making it more convenient when incorporating it into the system.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a schematic mechanism of an embodiment of the present invention, Fig. 2 is a schematic side view of the same, Fig. 3 is a perspective view of the same when the same is incorporated into a timer, and Fig. 4 is a perspective view of the same as the above. A perspective view showing a schematic mechanism of the card feeding device incorporated in the timer, and FIGS. 5 to 7 are operation explanatory diagrams of the same. 1 is a symbol, 2 is a card, 3 is a feed roller, 4 is a card reader, and 9 is a presser metal fitting.

Claims (1)

[Scope of utility model registration request] A feed roller that rotates while holding a card such as a program card on which a symbol of program data is written and transfers the card to the rear, and a feed roller that faces the card at a predetermined distance from the surface of the card in front of the feed roller. a card reader that reads data on the card; and a plurality of pressers that are placed in front of the card reader and that press down on the surface of the card on which data symbols are not written with enough presser force to allow the card to be transferred by the feed roller. A card feeding device comprising a comb-shaped holding metal fitting formed with a piece and holding down a card over substantially the entire widthwise direction.