JPH0348778Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is a magnetic card recording method in which a magnetic card is carried by a driving means or manually and is caused to run in a card running path so that a magnetic head records and reproduces the magnetic card. The present invention relates to a magnetic head holding structure for stably recording and reproducing by correcting the posture of the magnetic head in accordance with the running posture of the magnetic card in the card running path in a playback device.

(Prior Art) In magnetic card recording and reproducing devices, particularly those of the manual running type, the magnetic card is often not necessarily run parallel to the road surface within the card running path. In this case, poor contact occurs between the magnetic recording band of the magnetic card and the gap portion of the magnetic head, making it impossible to perform recording and reproducing operations satisfactorily, so countermeasures are considered necessary.

Therefore, in general, a rubber roller is provided in the card running path to urge the magnetic card inserted into the gap part of the magnetic head, or the entire magnetic head is tilted to follow the inclination of the magnetic card. At the same time, a mechanism has been devised to press the gap portion against the magnetic recording band surface of the magnetic card.

However, in the former structure, since the magnetic card is bent to correct its inclination, a considerable pressure force is required to bring the gap part of the magnetic head into close contact with the magnetic recording band. There is a problem that fatigue of the recording band and the gap portion is accelerated, and the latter structure requires a complicated mechanism for its implementation.

(Problem to be solved by the invention) Recently, in view of this background, a magnetic head is supported swingably by a spring material, and the magnetic head is caused to swing according to the attitude of the magnetic card. The gap between the magnetic recording band of the magnetic card and the magnetic head can be adjusted by selecting the spring material by pressing the gap part of the magnetic head against the magnetic recording band of the magnetic card using the biasing force generated by the deformation of the spring material at that time. A device has been developed in which the contact pressure with the part can be adjusted to an appropriate value and the structure is simplified. Specifically, a magnetic head is bonded to the middle part of a leaf spring and both ends are supported in point contact to serve as a pivot point for the leaf spring, and a rear part of the magnetic head is attached to the middle part of a round bar spring. There is a type in which the rod-shaped spring is pivoted and both ends of the rod-shaped spring are held.

Of these, the latter will be explained with reference to the drawings. In FIGS. 4 and 5, 51 is a magnetic head, and 52 is a round rod-shaped spring. magnetic head 51
The case extension piece 53 is pivotally attached to a round bar spring 52, and the round bar spring 52 is connected to the support portion 5 of a frame 54 in which a card running path (not shown) is provided.
5 and 55 at each end. Incidentally, this is disclosed in Japanese Utility Model Application Publication No. 57-177272.

However, in other words, the round bar spring 8 has a structure in which the middle part thereof is attached to the rear part of the magnetic head 51. When the spring is displaced in the V-V' direction as shown in the rear view, it will be bent and deformed, causing a risk of spacing loss due to the spring force in that direction. 52
Since it deforms into a wavy shape as shown by the two-dot chain line, it has the disadvantage that the curve drawn by this becomes tight and fatigue easily occurs.

Therefore, the technical problem of the present invention is to make it possible to perform recording and reproduction in a stable state without the risk of spacing loss, and to reduce fatigue of the spring material. An object of the present invention is to provide a magnetic head holding structure for a magnetic card recording/reproducing device.

(Means for solving problems) Therefore, the present invention has the following configuration.

That is, a magnetic head is sandwiched between a card running path through which a magnetic card runs and a rod-shaped spring provided to extend in the direction in which the magnetic card runs, with its front portion facing the card running path. The magnetic head is supported so that a part of its side part serves as a swinging fulcrum, and the rod-like spring hits the front part of the magnetic head when the magnetic card is run on the card running path. This is a magnetic head holding structure for a magnetic card recording/reproducing device, characterized in that both ends are held so that the intermediate portion slideably comes into elastic contact with the back of the magnetic head when the magnetic head comes into contact with the magnetic head.

(Operation of the invention) With this configuration, the bar spring is free in its swinging direction with respect to the rear of the magnetic head.
When the magnetic head is tilted, it will not stick to the rear part and be deformed in the swinging direction, and no waving will occur.

(Example) An example according to the present invention will be described below based on the drawings.

Fig. 1 is a plan view showing the structure of the recording/reproducing section which is the main part when the present invention is applied to a manual magnetic card recording/reproducing device, Fig. 2 is a sectional view taken along the - line, and Fig. 3 is It is a sectional view taken along the - line.

In these figures, reference numeral 1 denotes a frame of a recording/reproducing section, and this frame 1 is composed of a main body 2 and a mounting frame 3. The main body 2 has a substantially U-shaped cross section and includes one side wall portion 4 and opposing plate portions 5 and 6 facing each other with a space between them. There is a card running path 7 on which the magnetic card C runs. The mounting frame 3 is bonded to the outer wall surface of the opposing plate section 5.

Reference numeral 8 denotes a round bar spring, and this round bar spring is provided so as to extend in the direction in which the magnetic card C runs. The front part faces the card running path 7, and the magnetic head 9 is sandwiched therebetween. Reference numeral 10 denotes a guide hole, which is provided so as to face the card running path 7, and the magnetic head 9 is loosely inserted into the guide hole 10. The guide hole 10 is a hole 11 bored in the opposing plate part 5.
It consists of a hole 12 drilled in the mounting frame 3, and a flange-shaped portion 13 that becomes thinner inward is formed around the upper peripheral edge of the hole 12. The inner edge portion is located close to the side of the magnetic head 9, and this flange-like portion 13 is
The magnetic head 9 is supported so that its sides serve as swinging fulcrums.

Column portions 14, 14 are provided upright on the mounting frame 3 at intervals, and each of these column portions 14, 14 has a protrusion portion 15 that protrudes toward opposite sides.
is formed. An inverted U-shaped groove 16 is formed in the protrusion 15, and both ends of the round bar spring 8 are supported within this groove 16. That is, each end of the round bar spring 8 is inserted into the groove 16 of each of the protruding parts 15, 15, and the middle part is in slidable elastic contact with the rear part of the magnetic head 9. As can be seen, it is pressed against the magnetic head 9, thereby preventing it from falling out of the groove 16.

Next, the operation of this embodiment will be explained.

First, the round bar spring 8 is free in the swinging direction (X-X' direction in the figure) with respect to the rear part of the magnetic head 9, so when the magnetic head 9 is tilted, it sticks to the rear part of the magnetic head 9 in the X-X' direction. It will not transform into. In other words, since the round bar spring 8 is supported at both ends, the middle part tries to maintain its own position in the X-X' direction by the force in the X-X' direction. Even if a force in the X-X' direction is generated, it is not applied to the magnetic head 9, and therefore there is no risk of spacing loss occurring. Further, the curve drawn by the round bar spring 8 becomes gentle, and the degree of fatigue of the round bar spring 8 is alleviated.

(Effects of the invention) As is clear from the above, according to the invention, when the magnetic head is tilted, the rod-shaped spring sticks to the rear of the magnetic head and maintains its position in the swinging direction without deforming in the swinging direction. From that,
This has the effect that recording and reproducing on the magnetic card can be performed in a stable state without the risk of spacing loss caused by the force in this direction.

Furthermore, since the curve drawn by the deformation of the rod-shaped spring becomes gentle without undulations, the degree of fatigue of the rod-shaped spring is reduced. As a result, the life of the bar spring can be extended, and the reliability of recording and reproducing operations can be maintained over a long period of time.

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line, and Fig. 3 is a plan view of an embodiment of the present invention.
FIG. 4 is a perspective view showing an example of the prior art to which the present invention is compared, and FIG. 5 is a plan view showing the defects thereof. 7...Card running path, 8...Round bar spring, 9...
...magnetic head.

Claims (1)

[Scope of utility model registration request] A magnetic head is sandwiched between a card running path for running a magnetic card and a rod-shaped spring provided to extend in the direction in which the magnetic card runs, with its front portion facing the card running path. is supported so that a part of its side part serves as a swinging fulcrum, and the rod-shaped spring is supported when the magnetic card is moved along the card running path and comes into contact with the front part of the magnetic head. 1. A magnetic head holding structure for a magnetic card recording/reproducing device, characterized in that both ends of the magnetic head are supported such that an intermediate portion of the magnetic head is slidably and elastically contacted with a rear portion of the magnetic head.