JPH0240610Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a card push type magnetic card reader which prevents errors from occurring at the initial stage of card insertion in a magnetic card reader in which information is recorded or reproduced by manually pushing the card.

Conventional magnetic card readers that manually push the card do not have a drive means for card feeding, and the first
As shown in the figure, the card 5 is pushed into a magnetic card reader with only the insertion slot open, and when the card is pushed in, the magnetic head 3 records or reproduces information, and when other cards are pulled out, data is processed. Unlike devices that operate by pressing one side against the proof surface, errors often occur due to operational errors due to the special nature of the pushing operation. for example,
In particular, when the pressure force of the magnetic head against the card is relatively large, the card operator will unconsciously stop pushing the card once the load of the magnetic head is applied when the tip of the card reaches point B in Figure 1 after inserting the card.
Next, some operations may be performed by applying more force. As a result, in Figure 1, if the insertion slot is point A and the magnetic head position is point B, then in Figure 2 the card insertion speed ν rises from point A as shown by the dotted line and becomes 0 after passing point B. After that, the curve rises again, and the force F applied to the hand starts rising before point B. Therefore, the reproduction output V of the magnetic head
was not output at point B, or was hardly output, and the timing signal recorded on the track tip 5a of the card could not be read, resulting in an error. A similar phenomenon occurs in the case of recording.

Also, if there is not much room to grip the card when the card is fully inserted into the card reader, it is recommended that the operator insert the card a little into the insertion slot, change the card's hand, and then push the card in with the palm of the hand. It is being done. At this time as well, in order to prevent the card from falling out of the insertion slot, the first time the card is inserted is often stopped when the card hits the head and feels overloaded, and errors are likely to occur because the card is stopped in the middle of writing or reading records. There are drawbacks.

SUMMARY OF THE INVENTION In view of the above drawbacks, an object of the present invention is to provide a push-in type magnetic card reader that has a structure that corresponds to the operating habits when inserting a card, and that prevents errors from occurring during the initial stage of insertion.

The present invention will be explained below with reference to illustrated embodiments. Third
4, the magnetic card reader has a card insertion slot 1a opened only on one side of the frame 1, communicating with the card passage 1b, and a switch contact of the card detector 2 on the end wall 1c at the back of the card passage. It is prominent. A pair of elongated holes 1d and 1e and an insertion hole 1f for the magnetic head 3 are bored on the left and right sides of the upper wall of the card passage. Projecting holes 1g, 1h, 1i, 1j are provided at both longitudinal ends of the elongated holes 1d and 1e, respectively.
is drilled. The bent portions 4a and 4b of the preload plate 4 are inserted into the elongated hole and the protrusion hole, and the preload plate 4 is mounted on the outer side of the upper wall of the card passage 1b.

The preload plate 4 has a plate-like connecting portion 4c formed by a plate spring or the like, the bent portions 4a and 4b bent downward at both ends thereof, and a card insertion slot 1a in the bent portion.
It is formed of dog-shaped holding parts 4d and 4e that respectively protrude inwardly into the card passage 1b on the sides, and protruding parts 4f and 4g that are respectively bent outward towards the rear side of the card passage at the bending part. has been done. An insertion hole 4h for the magnetic head 3 is formed in the connecting portion 4c.

Point A is the position of the card insertion slot 1a, point B is the position of the magnetic head 3, point C is the position of the abutment wall 1c, and point D is the position of the dogleg-shaped holding parts 4d and 4e of the preload plate 4.
Point D is provided closer to point A than point B, and the holding parts 4d and 4e constitute means for loading the magnetic card 5 inserted from the card insertion slot 1a. The force with which the holding parts 4d and 4e clamp the magnetic card 5 is smaller than the pressing force applied to the card by the magnetic head 3.

When the magnetic card 5 is inserted into the card insertion slot 1a of the card insertion type magnetic card reader which has only the insertion slot opened in the card passage as described above, the magnetic card 5 is inserted into the card passage 1b on the card insertion slot side from the magnetic head 3 position. The card 5 is held by the protruding holding parts 4d and 4e.
Because the card is clamped and held temporarily, the operator suddenly feels a load from the no-load state due to this temporary holding, and unconsciously stops pushing the card as described above.
The magnetic head 3 and the card come into sliding contact by changing the card and pushing it in with the palm of the hand, or by holding it again and pushing it in. Therefore, it is less likely that the magnetic card will be pushed to the magnetic head position during the initial insertion operation. For example, during playback, if the card is inserted once to the magnetic head position and operated again from there, the timing area of the track tip 5a of the card will be pushed. Although an error may occur due to a lack of recorded reading timing "0", the occurrence of such an error is reduced. Also, the holding part 4
The card holding by d and 4e prevents the card from falling out, making it very convenient. Furthermore, even if you do not change the card, you will feel a load before it comes into sliding contact with the magnetic head, and then the magnetic head will experience a load that is slightly greater than this load, but the change in load will hardly affect the pushing operation. Thus, the card can be operated stably while it is in sliding contact with the magnetic head.

Fig. 5 is a state diagram showing the force F, velocity ν, and head output V exerted by the hand at points A, B, C, and D, and reliably reproduces or records at point B. .

In the above explanation, the preload plate is inserted into the card passage from the top, but it may also be inserted from the side. Further, although the holding portions are provided on both sides of the connecting portion, they may be provided on one side. Furthermore, the load means is not limited to a plate spring as long as it can temporarily hold the card.

Note that the magnetic card referred to in this proposal is not limited to things such as credit cards, but also applies to things such as passbooks.

Since the present invention is constructed as described above, the load is applied before the card hits the magnetic head, and the card can be changed in this state, thereby preventing erroneous operation. Furthermore, a load is applied to the card from a no-load state on the card insertion slot side than the magnetic head, and then a load on the magnetic head that is slightly larger than this load is applied, so the card slides on the magnetic head without being affected by the pushing operation. It is possible to provide a card-push type magnetic card reader that has excellent practical effects such as stable card running when the card is touched.

[Brief explanation of drawings]

Figure 1 is a plan view of a conventional card push-type magnetic card reader, Figure 2 is a state diagram of the pushing force F, speed ν, and output V when a card is inserted into the magnetic card reader shown in Figure 1. The figure is a plan view of the card-pushing type magnetic card reader of the present invention, FIG. 4 is an exploded perspective view of the same, and FIG. 5 is a state diagram of the card-pushing force F, speed ν, and output V of the same. 1a...Card insertion slot, 3...Magnetic head, 4
...Preload board, 5...Magnetic card.

Claims (1)

[Scope of utility model registration request] In a magnetic card reader that records or reproduces information when the card is manually inserted, the card is inserted into the card slot rather than the magnetic head. A card-push type magnetic card reader comprising a card loading means on the opening side so that the loading means can temporarily hold the card.