Magnetic information medium recording/reproducing device

Abstract

The drum(4) is formed in a hollow cylindrical shape, a plurality of inner support rollers 13, 14 and 15 for supporting the drum 4 from the inside are arranged in the hollow inner part. Among thee rollers, one inner support roller 13 is provided in the vicinity of the magnetic head 7, and the inner support roller 13 is regularly energized toward the magnetic head 7, and a roller 16 constituting part of a carrying means 5 is arranged in a position opposed thereto through the drum 4 so as to hold the drum 4 between the roller 16 and a movable carrying means. The information medium recording and reproducing device comprises a medium carrying passage 3 constituted by a carrying means 5 composed of the drum 4 and a plurality of carrying belts arranged around it, and a magnetic head 7 arranged ina position opposed to a magnetic recording part of a magnetic information medium.

Description

(1) Technical field [0001] The invention relates to a magnetic information medium recording and reproducing device suitable for processing flexible magnetic recording mediums. The present invention further relates to an improvement in the structure of a magnetic information medium recording and reproducing apparatus for transporting the magnetic information medium along the outer periphery of a magnetic drum. (2) Background technology [0002] Magnetic information medium recording and reproducing apparatuses are used for reading and writing of flexible and long-length magnetic recording media. [0003] As one of the flexible magnetic information media, there is a form in which the card length is long and data reading (reading) / writing (writing) is performed, such as a paper magnetic card for an airliner boarding ticket. Various data such as departure place and destination are recorded on the boarding ticket as magnetic information, and the data is read by a magnetic card re...

AI Technical Summary

Problems solved by technology

[0009] But when Figure 9 In the shown magnetic information medium recording and reproducing device, adopted the structure that only supports the solid magnetic drum with central shaft and makes it rotate, so along with the rotation vibration (and when adopting the solid magnetic drum structure, the weight of the magnetic drum itself become larger, so it will promote rotational vibration), and it is difficult to maintain a constant positional relationship between the magnetic recording medium and the magnetic head running on its outer peripheral surface, so there is a problem of unstable write / read output of magnetic data

In order to solve this problem, it is necessary to perform very high-precision drum processing in order to slightly suppress the rotational vibration of the drum, and the precision is also required for the bearing, which has the problem of increasing the cost.

[0010] In addition, when the structure of the solid magnetic drum is adopted, the weight of the magnetic drum itself increases, so the inertia increases, and it is difficult to alternately rotate forward and reverse in a short time, that is, it is difficult to transport and return to the magnetic drum sometimes. The information medium continuously reads / writes / verifies information, etc.

Therefore, during rotation in a certain direction, only these can be processed, and there is a problem that a lot of processing time is required only for the excess rotation.

In addition, since the weight of the drum itself increases, it is necessary to use a motor with a large torque, that is, an expensive motor

[0011] In addition, the arrangement relationship between the insertion port and the discharge port of the magnetic information medium must also be arranged in the tangential direction of the circular conveying path that makes it circulate in one direction, and on the extension line of the rotation direction, so not only cannot The arrangement relationship between the insertion port and the discharge port, the position of the valve, etc. can be freely designed, and this also becomes a cause of the size of the device

[0012] In addition, since some equipment such as a drive motor has to be arranged around the solid drum, space for arranging these equipment is required, and there is a problem that the device becomes larger.

[0013] In addition, as mentioned above, when the magnetic information medium is clamped between the outer circumference of the magnetic drum and the conveying mechanism (such as a flat belt, etc.), it is difficult to cut the length with high precision because the magnetic information medium is made of paper. direction and width direction, and sometimes its size will expand and contract due to moisture. The magnetic information medium is always close to the magnetic head side, and the track of the magnetic information medium does not necessarily pass through the specified position.

Therefore, when performing magnetic information reading and writing operations, the track position accuracy may not be sufficient.

[0014] In addition, when it is difficult to keep the positional relationship between the position of the magnetic drum and the magnetic head constant, in order to always pass the predetermined position, it is also considered to use a pressing member to press the side of the magnetic information medium, but because the magnetic information medium is made of paper , so when a strong pressing force is applied, the paper will be deflected, or the side edge of the medium will be crushed, and there is a problem that it is difficult to transfer to a certain position relative to the magnetic head.

Therefore, resulting in unstable output when writing or reading magnetic information

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