JPH0142870Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic card reader, and more particularly to a magnetic head attachment mechanism for a manual magnetic card reader.

As this type of attachment mechanism, the one shown in FIGS. 1 and 2 has been proposed.

A U-shaped auxiliary frame 3 is fixed to the magnetic head 1,
Pins 4 are fixed to each side of the auxiliary frame 3. The pins 4 are pivotally supported by shaft supports 51 provided at both ends of the U-shaped spring plate 5, so that the magnetic head 1 is supported so as to be rotatable about the pin 4. The spring plate 5 is attached to a guide frame 6 having a magnetic card guide hole 61 with screws 7, and biases the magnetic head 1 in the direction of protruding into the magnetic card guide hole 61 through the magnetic head guide window 62.

Although such a mounting mechanism can be made compact, it is troublesome to insert the pin 4 into the shaft support 51 of the spring plate 5, and has the disadvantage that complicated processing is required to manufacture the spring plate 5.

The present invention is an attempt to eliminate these drawbacks, and is an inexpensive and highly reliable manual type that uses a small and simple mechanism to make the magnetic head follow the inclination of the magnetic card and to properly press the magnetic head into contact with the magnetic card. The purpose is to provide a magnetic card reader.

The present invention uses the central part of a mounting bracket made of a round bar spring bent into a substantially U-shape as a holding part, and a magnetic head is rotatably assembled to this holding part. It is characterized by being installed so as to extend in the direction of movement and to generate a biasing force in a direction perpendicular to the magnetic card.

3 and 4 show an embodiment in which the present invention is applied to a manual magnetic card reader of the magnetic card insertion type, and the same parts as in FIGS. 1 and 2 are given the same numbers.

As a mounting bracket for the magnetic head 1, a mounting bracket 10 made by bending a round bar spring into a substantially U-shape is used. This mounting bracket 10 has its center portion attached to the magnetic head 1.
The holding part and the leg parts on both sides are used as attachment parts to the guide frame 6. A substantially U-shaped auxiliary frame 11 is fixed to the magnetic head 1. This auxiliary frame 11 has its rear edge protruding rearward from the rear end of the magnetic head 1,
A through hole 111 is provided in each of the pair of protrusions facing each other. Then, the holding part of the mounting bracket 10 is inserted into this through hole 111, and the magnetic head 1
is rotatably supported. The mounting bracket 10 may be a round bar-shaped member that is inserted into the through hole 111 and then bent into a U-shape. Furthermore, a locking portion 112 is provided at the front edge of the auxiliary frame 11 to prevent the magnetic head 1 from entering the guide hole 61.

In the case of the magnetic card running type, the guide frame 6 in FIG. 3 is opened not only on the left side in the figure but also on the upper and right sides for the magnetic card running.

The mounting bracket 10 is attached to the guide frame 6 so that its holding portion extends in the magnetic card movement direction indicated by the arrow in FIG. That is, the legs 101, 101 of the mounting bracket 10 are fitted into grooves provided on the protrusion 63 of the guide frame 6, and the fixing plate 12 is fixed thereon by screwing to the protrusion 63. 2 is an input/output terminal of the magnetic head 1.

With such a mounting mechanism, the magnetic head 1 is supported with its head gap being perpendicular to the direction of movement of the magnetic card, and is urged in the direction of arrow B (FIG. 4) to protrude into the guide hole 61 by the spring properties of the mounting bracket 10. be done. Furthermore, the magnetic head 1 can be moved back in the direction of arrow B' by contact with the magnetic card, and in this retreated state, it can also be rotated in the direction of arrow A-A' around the holding part of the mounting bracket 10. .

Therefore, the magnetic head 1 rotates around the holding part of the mounting bracket 10 in the direction A-A', following the angle at which the magnetic card is inserted, as shown by the dashed line in FIG. Thickness direction B- of magnetic card
It is also movable to B', and is displaced in accordance with the inserted state of the magnetic card, so that the magnetic head 1 can be brought into pressure contact with the magnetic card using the appropriate pressure.

As is clear from the figure, with this mounting mechanism, it is easy to attach the magnetic head 1 to the mounting bracket 10, and the mounting bracket 10 can also be easily made by simply bending a round rod-shaped spring. Of course, instead of the pair of through holes 111 in the auxiliary frame 11, a pair of deep notches may be provided at the rear edge of the auxiliary frame 11. This notch is sufficient as long as the holding part of the mounting bracket 10 can be fitted into it from the rear edge of the auxiliary frame 11. In this case, the mounting bracket 10 urges the magnetic head 1 to protrude into the guide hole 61. Since the mounting bracket 1
The holding portion of the magnetic head 1 does not come off from the notch, and the magnetic head 1 can be attached more easily.

As described above, according to the present invention, it is possible to provide a highly versatile magnetic head mounting mechanism that is small and simple and can be used for both insertion type and traveling type magnetic card readers. Thereby, it is possible to provide an inexpensive and highly reliable magnetic card reader that can always perform stable recording and reproduction without being affected by the inclination, thickness, etc. of the magnetic card.

[Brief explanation of drawings]

Figures 1 and 2 are views of the main structure of a conventional magnetic card reader viewed from the rear and side of the magnetic head, respectively, and Figures 3 and 4 are views of the main structure of the present invention as viewed from the magnetic head. It is a view seen from the rear and side. DESCRIPTION OF SYMBOLS 1...Magnetic head, 5...Spring plate, 6...Magnetic card guide frame, 10...Mounting bracket, 11...Auxiliary frame, 12...Fixing plate.

Claims (1)

[Scope of utility model registration request] In a magnetic card reader in which a magnetic head is provided so as to be freely retractable into the magnetic card guide hole through a guide window provided in a magnetic card guide frame forming a magnetic card guide hole, a round bar-shaped spring is bent into a substantially U-shape. Process the center part to make the holding part of the magnetic head,
The legs on both sides are used as attachment parts to the magnetic card guide frame, an auxiliary frame is fixed to the magnetic head so that a pair of protrusions protrudes rearward from the rear end, and the holding part is attached to the pair of protrusions. The magnetic head is rotatably held through a through hole or notch provided in the part, and each of the leg parts on both sides extends in the magnetic card movement direction and holds the magnetic card to be moved. A magnetic card reader, wherein the magnetic card reader is fixed to the magnetic card guide frame so as to generate an urging force in a direction perpendicular to the surface of the magnetic card guide frame.