JPS6245330Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement to a card reading device which magnetically or optically reads information recorded on a card-type medium, and in particular to an improvement to the jam detection mechanism in a magnetic sheet reading device etc., which stops the drive motor and unlocks the device cover in response to the jam signal.

Generally, jam detection mechanisms are used, for example, in card reading devices, especially optical or magnetic mark reading devices and character recognition devices, which have a running path for transferring cards or forms as shown in the figure.

In the figure, 10 is a file hopper, 11 is a reading unit that reads marks on cards or forms, 12 is a sorting mechanism that sorts cards or forms that are being transferred, and 13' and 13'' are cards or letters sorted by the sorting mechanism. Statska that accumulates forms, 14
is the jam detection mechanism.

Card or form 15 is file hopper 10
The information is read by the reading section 11, and the sorting mechanism 12 sends out the sheets one by one from the stacker 1.
3' or the stacker 13''. However, the feeding of cards or forms may be delayed due to slipping or other causes, and if there is a deviation from the operating timing of the switch of the sorting mechanism 12, the above-mentioned Unnecessary pressure may be applied to the card or form, causing a jam.

Jams also occur frequently when passing damaged cards or forms.

For this reason, a jam detection mechanism 14 has conventionally been provided just before the sorting mechanism 12, so that when a jam occurs, it can immediately detect the jam state and prepare to deal with it.

However, in the conventional device with the above configuration, when a medium such as a card becomes jammed at the read start switch (RSC) 16 provided in the card reader, the motor 21 that drives the medium transfer rollers 17, 18, 19, and 20 stops working. It didn't stop and caused unnecessary damage to the card. Therefore, in order to remove the jammed medium, the device operator manually opens the lock 23 provided on the upper cover 22 of the device and removes the jammed card. However, at this time, the motor 21 is rotating, and the transfer rollers 17 to 20
Since the rotating parts were also rotating, it was dangerous to get your hands caught in the rotating parts.

The present invention eliminates the above-mentioned drawbacks, and as a substitute for or in addition to the conventional jam detection mechanism, a light emitting diode, for example, is installed at the card reader entrance just before the roller 17 and at the card exit, that is, near the sorting mechanism 12. card transfer detection devices 1 and 2 consisting of a photodetector and a standard travel time t and an actual travel time (t
+Δt) is detected, and when this time difference Δt exceeds a predetermined value, the control section 3 outputs a signal to stop the drive motor 21 and control the cover lock to open the device cover 22. This device is characterized in that it is configured to issue a command to the mechanism 4 to release the lock 23.

This cover locking mechanism 4 is locked when the card reader is in normal operation, and the operator cannot open the cover 22, thereby preventing the dangers associated with conventional mechanisms.

Next, an example of the configuration of the control section 3 will be described. The control section 3 includes a memory means for storing the card running standard time, a means for detecting the card running time, and a means for calculating the difference between the previous standard time and the card running time. However, it includes a circuit for outputting this calculated value, and means for issuing a stop command to the drive motor 21 and outputting a signal to release the lock 23 of the cover lock mechanism 4 when the calculated output exceeds a predetermined value.

In the above embodiment, the card transfer detection device was installed in front of the transfer roller 17 and in the vicinity of the card sorting mechanism 12, but it could also be installed at a predetermined interval in another part of the card travel path different from the above embodiment. Jam detection is also possible by detecting the difference in travel time between cards.

Also, if there is one card transfer detection device, the fall time of the photodetector signal when the card comes to the transfer detection device section, and the rise time of the photodetector signal when the card passes the transfer detection device section. The jam may be detected based on the difference from the time.

As explained above, if a card reading device is constructed according to the present invention, the device will not be damaged when a card jams, and there will be no danger of incorrect operation by maintenance personnel, etc. A useful card reading device can be provided.

[Brief explanation of the drawing]

The figure is a diagram illustrating the outline of a card reading device to which the present invention is applied. In the figure, 1 and 2 are card transfer detection devices, 3
1 is a control unit, 4 is a cover lock mechanism, 23 is a lock, 15 is a card, 10 is a hopper, 13 is a stacker, 11 is a reading unit, 16 is a reading start switch,
14 is a jam detection mechanism, 17 to 20 are transfer rollers, 21 is a motor, and 22 is an upper cover.

Claims (1)

[Scope of utility model registration request] A card reading device configured to read information from a card by moving the card, the device comprising: a card transfer drive motor for transferring the card; a card to be transferred; a reading section for reading information from the card; and the card transfer drive motor. a device cover provided to cover the device cover, a locking mechanism for the device cover, and a control section for driving and controlling the card transfer drive motor and keeping the lock mechanism in a locked state while the card transfer drive motor is being driven. , two card transfer detection devices are provided on the card transfer path at a predetermined interval, and the control unit is configured to calculate the time difference between the detection signals from each card transfer detection device and a preset standard time. Find the difference,
If the time difference is larger, the card transfer drive motor is stopped, and the lock mechanism is released when the card transfer drive motor is stopped.