JP3065777B2 - Head holding mechanism of magnetic recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head holding mechanism for a magnetic recording apparatus, and more particularly, to a head of a magnetic recording apparatus capable of guaranteeing a smooth movement even when a carriage or a support rail is deformed due to an environment or aging. Related to a holding mechanism.

[0002]

2. Description of the Related Art An apparatus such as an automatic teller machine used in financial institutions or the like is configured to write data on a magnetic stripe such as a passbook to be inserted or to read already written data. A magnetic recording device is incorporated. In this type of conventional magnetic recording device,
The magnetic stripe of the passbook being conveyed was sent over the fixed magnetic head to write or read data. Also, there is a device for recording by moving the magnetic head by fixing the passbook, and in this case, the carriage is moved to the sliding portion between the support rail and the carriage by a method such as bonding or press-fitting. Fixed bearings were used. Incidentally, regarding this, for example,
Reference is made to the techniques disclosed in JP-A-62-217470 and JP-A-63-77789.

[0003]

In the prior art described above, the bearing member is fixedly attached to the carriage, so that the deformation of the carriage and the deformation of the support rail due to environmental and aging changes the bearing and the support rail. It becomes difficult to maintain good coaxiality (degree of coincidence of the axis center line), and the sliding load between the carriage and the support rail increases, causing the problem that the transport speed of the magnetic head becomes unstable. was there. Such a condition
This may cause erroneous writing or erroneous reading during the magnetic recording operation, and the increase in the transport speed of the magnetic head accompanying the shortening of the processing time further increases the influence of the above-described fluctuation of the sliding load. Direction. In order to reduce the deformation of the carriage and the support rail, it is possible to adopt a highly rigid material and improve the accuracy of various dimensions.
Another problem is that the cost is significantly increased. The present invention has been made in view of the above circumstances, and an object of the present invention is to solve the above-described problems in the conventional technology and to reduce the cost of the carriage and the support rails due to the environment and aging without increasing the cost. An object of the present invention is to provide a head holding mechanism of a magnetic recording device that can guarantee smooth movement even when the head is deformed.

[0004]

The above objects of the present invention are as follows.
In a magnetic recording apparatus that performs magnetic recording using a magnetic head, the magnetic recording apparatus moves along a support rail in the magnetic recording apparatus.
And a support rail (1)
8) An inner peripheral portion that is substantially in surface contact with the outer surface, and a portion is approximately spherical
Around the support rail (18)
Bearing (slide bush 27) that rotates
An inner wall which is substantially in line contact with the substantially spherical portion of the outer peripheral portion of the cliff (27)
Bearing storage part having a shaft and installed outside the bearing (27)
An elastic material (26) for absorbing the bearing displacement;
A bush installed outside the elastic material and holding the elastic material
(25) a carriage (16) and a magnetic head
(15) A head bracket for attaching to the carriage
(23) is achieved by a magnetic head holding mechanism (hereinafter, simply referred to as a "head holding mechanism") of a magnetic recording apparatus characterized by having the following.

[0005]

In the head holding mechanism according to the present invention, the two bearings of the carriage that holds and conveys the magnetic head can always maintain good coaxiality with the support rails, respectively. Sliding load fluctuation with the rail can be reduced. Thereby, the transport speed of the magnetic head is stabilized, and it is possible to maintain the magnetic recording and reading accuracy in a good state.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a diagram showing details of a passbook handling mechanism 28 in a cash transaction apparatus equipped with a magnetic recording device having a head holding mechanism according to one embodiment of the present invention. The passbook handling mechanism 28 shown in this embodiment has a front surface (right side in the figure).
On the front side, there is an inlet / outlet 1, on the upper front, a hopper 2 before stacking and feeding out the statement slips 29, and below it, an evacuation unit 3 for temporarily storing the passbook 19 and the statement slips 29 being handled. , Is provided. In addition, above the central portion of the passbook handling mechanism 28, a passbook 19 and a statement slip 29 are provided.
A printing device 4 for performing printing on an image is provided. An optical reading device 5 is provided between the printing device 4 and the front hopper 2 described above.
The optical reading device 5 determines the page of the passbook 19, the printed line, the front and back of the statement slip 29, and the like. A magnetic recording device 6 is provided below the center of the passbook handling mechanism 28. The magnetic recording device 6 has a magnetic head 15 mounted on the carriage 16 using a head bracket 23, and a support rail 18 mounted on a track shaft. With the reciprocating movement of the carriage 16, data is written or read on the magnetic stripe on the back or front surface of the passbook 19 stopped in the transport path 22.

A main hopper 7 for stacking and feeding out the statement slips 29 is provided above a rear portion of the passbook handling mechanism 28, and a passbook page changing device 8 is provided below the main hopper 7.
Is provided. The passbook page changing device 8 changes pages of the passbook 19 or closes the passbook 19 at once. Below the passbook page changing device 8, there is provided a collection box 9 for collecting statement slips whose front and back cannot be distinguished and passbooks that the user has left behind. Behind the collection box 9, a post hopper 10 for stacking and feeding out the statement slips 29 is provided. After this, the hopper 10 as well as the above-mentioned front hopper 2 ensures an increase in the number of sheets of the statement slips 29 to be accommodated. Behind the passbook handling mechanism 28,
A rear discharge port 11 is provided, and is used to discharge a statement slip 29 or the like at the time of a staff operation. The above-mentioned parts are connected to each other by a conveying means, and switching separators 12, 13, and 14 are provided at a branch portion in the middle of the conveying means. FIGS. 3 and 4 show the main configuration of the magnetic head reciprocating mechanism provided in the magnetic recording device 6 described above. The magnetic head 15 is pressed against the magnetic stripe of the passbook 19 stopped in the transport path 22 from below the transport path 22 to perform magnetic recording.

The reciprocating motion of the magnetic head 15 is controlled by a wire 32
Is connected to the carriage 16 and pulled left and right in the figure.
The carriage 16 is configured to be rotatable around a support rail 18, and the rotation angle is suppressed by the carriage holder 17, the roller 30, and the roller guide 31. The pushing force of the magnetic head 15 is determined by a spring 21, and both ends thereof are fixed to the carriage 16 and the carriage holder 17. FIG. 1 shows the details of the configuration of the bearing inside the carriage 16, which is the main point of this embodiment. The magnetic head 15 is attached to the carriage 16 using a head bracket 23. A pivot bearing 24 is provided at two joints between the carriage 16 and the head bracket 23, and connects the two joints. The magnetic head 15 is configured to be freely rotatable around the line segment. A slide bush 27 serving as a bearing and an elastic material 26 are built in the carriage 16, and are covered with the bush 25.

The outer shape of the above-mentioned slide bush 27 has a substantially spherical crown (intermediate height) shape, and the inner surface of the carriage 16 and the outer surface of the slide bush 27 are substantially in line contact or substantially point contact. I have. The inner surface of the slide bush 27 and the outer surface of the support rail 18 are substantially in surface contact. Next, an operation example of the present embodiment will be described with reference to FIGS.
This will be described with reference to FIG. First, in FIG. 1, no deformation is seen in the carriage 16 on which the magnetic head 15 is mounted and the support rail 18. In this case, the bearing of the carriage 16, the two slide bushes 27, and the support rail 1
Numeral 8 keeps the mutual coaxiality constant. In this case, there is no change in the sliding load of the carriage 16. next,
As shown in FIG. 5, the carriage 16 is made of
Alternatively, the case where the magnetic head 15 is deformed due to internal stress or the like due to the attachment is considered. In this case, the two slide bushes 27 are independent of the carriage 16 and
The coaxiality with the support rail 18 can be adjusted. At this time, the elastic member 26 receives the slide bush 27 after being slightly deformed.

The inner diameter of the bush 25 and the inner diameter of the central portion of the carriage 16 are slightly larger than the outer diameter of the support rail 18 as compared with the inner diameter of the slide bush 27 so that contact with the support rail 18 is avoided. Is configured. Therefore, there is no change in the sliding load of the carriage 16. Further, as shown in FIG.
Even when the slide bush 8 is deformed, the sliding load of the carriage 16 is varied so that the two slide bushes 27 individually and minutely fluctuate while maintaining a constant coaxiality with the support rail 18. And can be stably maintained. According to the above embodiment, the magnetic head 1
Since the two bearings (slide bushings 27) of the carriage 16 for holding and transporting the carriage 5 can always maintain good coaxiality with the support rail 18, the sliding between the carriage 16 and the support rail 18 can be achieved. Dynamic load fluctuation can be reduced. As a result, the transport speed of the magnetic head 15 is stabilized, and it is possible to maintain the accuracy of magnetic recording and reading in a good state.

In the above-described embodiment, the slide bush 27 of the carriage 16 is formed so that the outer shape thereof has a substantially spherical crown (intermediate height) shape. The shape of the bush 27 is not limited to this, and it is also possible to form the bush 27 as a set of minute primary curved surfaces. Further, the above-described embodiment is shown as an example of the present invention, and it is needless to say that the present invention can be applied to other devices that need to prevent fluctuation of a sliding load. .

[0012]

As described above in detail, according to the present invention, it is possible to guarantee a smooth movement even when the carriage or the support rail is deformed due to the environment, aging, etc. without increasing the cost. This has a remarkable effect that a head holding mechanism of a magnetic recording apparatus can be realized.

[0013]

[Brief description of the drawings]

FIG. 1 is a diagram showing a detailed configuration of a head holding mechanism according to an embodiment of the present invention.

FIG. 2 is a diagram showing details of a passbook handling mechanism in a cash transaction apparatus equipped with a magnetic recording device having a head holding mechanism according to the embodiment.

FIG. 3 is a side view showing a main configuration of a magnetic head reciprocating mechanism provided in the magnetic recording apparatus of the embodiment.

FIG. 4 is a front view corresponding to FIG. 3;

FIG. 5 is a diagram (part 1) illustrating details of the operation of the head holding mechanism according to the embodiment.

FIG. 6 is a diagram (part 2) illustrating details of the operation of the head holding mechanism according to the embodiment.

[Explanation of symbols]

6: magnetic recording device, 15: magnetic head, 16: carriage, 18: support rail, 19: passbook, 25: bush, 26: elastic material, 27: slide bush, 28: passbook handling mechanism.

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akiyasu Miyazawa 1 Ikegami, Haruoka-cho, Owariasahi-shi, Aichi Prefecture Inside the Asahi Plant of Hitachi, Ltd. 58-75487 (JP, U) Japanese Utility Model 62-94462 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G11B 21/02

Claims (1)

(57) [Claims] 1. A magnetic recording apparatus for performing magnetic recording using a magnetic head, comprising: a support rail in the magnetic recording apparatus;
A magnetic head holding mechanism that moves along the inner periphery of the support rail, the inner periphery being substantially in contact with the outer surface of the support rail;
And an outer peripheral portion having a substantially spherical shape.
A bearing that rotates around the shaft, and an inner wall that is substantially in line contact with the substantially spherical portion of the outer peripheral portion of the bearing.
And a bearing storage portion having the bearing storage portion, which is disposed outside the bearing and absorbs the displacement of the bearing.
An elastic material, and a bush installed outside the elastic material and holding the elastic material.
And a head bracket for attaching the magnetic head to the carriage.
Magnetic head holding mechanism of a magnetic recording apparatus, characterized in that it comprises a Tsu bets.