JPS6390062A - Magnetic recording device - Google Patents

Abstract

PURPOSE:To stably compose a good head touch with an inexpensive structure by enabling the fine adjustment of the pressing force of the pressure means pressing an upper carriage from the upper part by being supported by a lower carriage. CONSTITUTION:A disk 2 is pinched by upper and lower carriages 4, 7 and upper and lower heads 3, 8 and the rotary means at the recording and reproducing times is formed with the flexibility of the suspension part 4a of the upper carriage 4 composed of a very thin flexible plate like metal material. A twist coil spring 5 is supported by receiving it with the spring receiver 7a of the lower carriage 7 and one end thereof is inhibited by a spring peg 7b in the state of storing twisting moment energy and the carriage 4 is pressed with the other end. The spring peg 7a is formed in plural steps, the fine adjustment of the pressing force is facilitated with its switching, a good head touch is composed and the cost can be reduced by the spring 5 of simple structure as well.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head feeding device in a magnetic recording device, and more specifically, a second magnetic head having a rotating means that is rotatable opposite to a first magnetic head. Regarding the carriage structure of.

[Prior art] A device equipped with a conventional moving means and equipped with a first magnetic head,
A first carriage that moves according to the movement of the moving drive means.

A holding element is carried by a holding means carried by the first carriage, and holds a medium for recording and reproducing together with the first magnetic head, and the holding element rotates opposite to the first magnetic head. a second carriage having movable pivoting means;

A magnetic recording apparatus comprising a pressing means for pressing the second carriage to bring the first magnetic head, the medium, and the holding element into close contact with each other in the required relationship is shown in FIGS. The structure was as shown in FIGS. 12 and 13.

FIG. 10 is a sectional view of the main part of a carriage in a conventional magnetic recording device, and FIG. 11 is a perspective view of the main part.

In FIGS. 10 and 11, a motor 51 for chucking the disk 52 and rotating it in the direction of an arrow 63 is fixed to a frame 59;
holds a guide shaft 60 as a guide means.

The lower head 58 as the first magnetic head is provided with a moving drive means (not shown), for example, to improve its flexibility.
A lower carriage 57 as a first carriage mounted via a lower gimbal 58a is guided by the guide shaft 60 and moves in the direction indicated by the arrow 6.
It has a structure that slides in two directions.

On the other hand, an upper head 53 as a second magnetic head is mounted, for example, via an upper gimbal 53a having flexibility.
An upper carriage 54 as a second carriage made of, for example, a plastic material is integrally connected to a flexible suspension 56 made of, for example, stainless steel spring copper. The lower head 58 and the upper spatula 53 are structured to sandwich the disk 52. The upper carriage 54 is moved by the lower head 5 due to the flexibility of the suspension 56.
It has a structure that can be rotated in opposition to 8.

On the other hand, a spring 55 is disposed as a means for pressing the lower head 58 and the upper head 53 to sandwich the disk 52, which is a medium for recording and reproducing.
The spring support 6G supports the support on one side, and presses the upper carriage 54 on the other side.

Regarding the structure of fixing the upper carriage 54 to the lower carriage 57 via the aforementioned suspension 56, as shown in FIG.
A suspension tongue 56 is sandwiched between the suspension tongues 56 and fixed by the screws 67, and the screws 67 are fixed by setting the relative positional relationship between the lower head 58 and the upper head 53 to a predetermined positional relationship. It is tightened to fix the position.

The upper carriage 54 is provided with a shield material 61 for protecting the upper head 53 and the lower head 58 from, for example, external noise.

The shielding material 61 has a required surface area and a required thickness in order to achieve its purpose.Of course, the wider the surface area and the thicker the shielding material, the more effective the sealing 1ξ effect will be. be.

The second carriage structure, which has a rotating means that can rotate opposite to the first magnetic head in the conventional magnetic recording apparatus described above, requires a number of improvements as described below.

1) In FIG. 11, the disk 52 is indicated by an arrow 65.
When the disk 52 rotates in the direction, the disk 52 is held between the lower head 58 and the lower head 53 as described above in FIG. The two heads behave in a stick-slip manner, and the lease pension 56 receives a torsional moment of 1-.
The upper carriage 54 repeatedly vibrates in the direction of an arrow 64 shown in FIG. 11, that is, vibrates approximately in the direction of rotation of the disk 52.

In other words, the upper head 53 causes a relative displacement in the circumferential direction with respect to the recording/reproducing position of the disk 52,
In other words, the recording/reproducing timing becomes unstable, which poses a problem in increasing the capacity of the magnetic recording device.

2) will be explained based on FIGS. 2 and 13.

12 and 13 are detailed sectional views of main parts of a carriage in a conventional magnetic recording device, in which the upper carriage 54
FIG.

In FIGS. 12 and 13, the upper carriage 54
As described above with reference to FIG. 10, one end is fixed to the lower carriage 57 via the suspension 56,
On the other hand, the upper head 53 is in contact with the lower head 58 via the disk 52, and when the above-mentioned spring 55 presses the upper carriage 54, the suspension 56 is moved as shown in FIG. It deforms into a roughly arched shape.

On the other hand, the upper carriage 54 is provided with the shield material 61 as described above in FIG.
10 In order to achieve the objective, as mentioned above, the wider the surface area and the thicker the structure, the more effective the shielding effect will be. The suspension 5 shown in FIG.
The degree of the substantially arcuate deformation 6 varies depending on the mass of the upper carriage 54 including the shield material 61.

Further, the substantially arcuate deformation of the suspension 5G that deforms in response to external disturbances such as vibrations and impacts is 1113
In other words, the suspension 56 undergoes a substantially arcuate deformation as shown in FIG. 12 in the opposite direction to that shown in FIG. From the position where the upper head 5
3 changes, and this causes a radial positional deviation with respect to the recording/reproducing position of the disk 52, that is, an off-track, which hinders the increase in the capacity of the magnetic recording device and the magnetic It also has fatal flaws such as loss of compatibility of media between recording devices.

Furthermore, when the suspension 56 is deformed into a substantially arcuate shape as shown in FIGS. 12 and 13, the upper head 53 and the disk 5 are
2. The lower heads 58 are such that, for example, a gap of only a few knobs microns is not allowed to contact each other, that is, the head touch deteriorates, and even recording and reproduction becomes impossible.

3) In order to maintain data compatibility, magnetic recording devices standardize and specify the recording/reproducing position of the medium, and in particular, the relative positional relationship between the lower head 58 and the upper head 53 has strict default values. Positional accuracy, and mutual positional adjustment is delicate.

However, in the conventional structure shown in FIG. 10 and described above, there is a lack of effective means for adjusting the position, and if I had to point out, I would temporarily tighten the screw 67 with the required tightening torque to tighten the suspension 56. The lower carriage 57 and the spring receiver 66 are compressed to form a moderately movable state. For example, a part of the upper carriage 54 is biased to move the suspension 56, and the suspension 56 is moved as described above. After adjusting the relative positional relationship between the lower head 58 and the upper head 53 to a desired positional relationship, the screws 67 are again tightened with the required torque to fix the position.

Incidentally, as the absolute position reference for the position adjustment, a required signal recorded on the disk 52 is used as a reference, and while tracking and reproducing the signal with the lower head 58 and the upper head 53, the required relative positional relationship is adjusted. This is to adjust the position.

However, as described above, the suspension 56 is flexible, and as described above, it is compressed between the lower carriage 57 and the spring receiver 6G, and biases a portion of the upper carriage 54 to move. When the suspension 56 is moved, the suspension 5G remains under bending and buckling stress, and the upper ridge 54
When the movement biasing force applied to a part of The lower head 58 and the upper head 53 are returned to their original positions, resulting in a difference from the intended position.
Adjusting the required relative positional relationship requires a great deal of effort and effort to correct the difference from the desired position, and requires an immeasurable amount of time.

As mentioned above in 4) and 3), the absolute position rI! is used to adjust the relative positional relationship between the lower head 58 and the second head 53 to a desired positional relationship. As a reference, a required signal recorded on the disk 52 is used as a reference, and while tracking and reproducing the signal with the lower head 58 and the upper head 53, the position is adjusted to a required relative positional relationship, Regarding the reproduction of the signal, it goes without saying that the upper head 53. The disk 52. The lower head 58 is held in contact with the lower head 58 by the spring 55 as described above in order to maintain mutual contact that does not allow a gap of even a few microns, that is, good head touch.
8 and the upper head 53 sandwich and press the disk 52. In this configuration, the above-mentioned spring receiver 66 lifts up due to the reaction force of the spring 55. It is not easy to compress the suspension 56 between the lower carriage 57 and the spring receiver 66 so that it can move properly.
In this state, as described above, for example, a part of the upper carriage 54 is moved and urged to move the suspension 56, and the relative positional relationship between the lower head 58 and the upper head 53 is adjusted to a desired positional relationship. After that, at the moment when the screw 67 is tightened with the required tightening torque and fixed in position,
The above-mentioned → North Pension 5G is attached to the above-mentioned lower carriage 57.
In other words, the position of the upper carriage 54, that is, the upper head 53 changes, and the position of the lower head 58 and the upper head 53, which have been adjusted in position, changes. This causes a change in the relative positional relationship between the heads 53, and as in 3), adjusting the required relative positional relationship between the lower spatula 1558 and the upper head 530 requires a lot of effort and skill. , which required an immeasurable amount of time.

As mentioned above, the second carriage structure having a rotating means that can move opposite the first magnetic spatula IS in a conventional magnetic recording device has many problems, and the magnetic This not only affects the reliability of the recording device, but also makes it impossible to automate the mass production process and is expensive.

[Problems to be Solved by the Invention] As mentioned above, the conventional technology has many problems, especially fatal problems such as complete loss of compatibility as a magnetic recording device. a pressing means for pressing a second carriage including a rotating means rotatable in opposition to the first magnetic head to bring the first magnetic head, the medium, and the holding element into close contact with each other in a desired relationship; about,
A stable and good head touch could not be achieved.

SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and its purpose is to provide a second carriage having a simple structure and having a rotating means that can rotate opposite to the first magnetic head. The pressing means is configured to press the first magnetic head, the medium, and the holding element to bring them into close contact with each other in the required relationship, and to achieve stable and good head touch. Not only is it effective in adjusting the relative positional relationship of the clamping element with respect to the magnetic head, but it also facilitates fine adjustment of the pressing force of the pressing means, and the configuration of the pressing means does not need to be precise, making it inexpensive. It is possible to easily configure a good spatula-'' touch, and it also aims at high-speed automation of position adjustment of the relative position of the clamping element with respect to the first magnetic head, and is inexpensive. This provides a highly reliable magnetic recording device.

[Means for Solving the Problems] The magnetic recording apparatus of the present invention includes: a first carriage that is provided with a moving means, on which a first magnetic head is mounted, and that moves according to the movement of the moving drive means;

A holding element is carried by a holding means carried by the second carriage, and is provided with a holding element for holding a medium for recording and reproducing together with the first magnetic head, and is rotatable in opposition to the first magnetic head. a second carriage with possible pivoting means;

a pressing means for pressing the second carriage to bring the first magnetic head, the medium, and the holding element into close contact with each other in a desired relationship;

A magnetic recording device comprising the following features: 1) At least a pressing energy generating part of the pressing means is supported by the first carriage, and has a structure that allows fine adjustment of the pressing energy of the pressing means. do.

2) The pressing means is constructed of a torsion coil spring.

[Function] According to the above configuration of the present invention, the pressing means stably presses the second carriage, and the pressing force does not change or cause a physical stress reaction to the second carriage. Not only does it not cause any damage, but the pressing force of the pressing means can be easily finely adjusted.

[Embodiment] Figs. 1 to 7 show a first carriage that is equipped with the moving means of the present invention, carries a first magnetic head, and moves according to the movement of the moving drive means.

A holding element is carried by a holding means carried by the second carriage, and is provided with a holding element for holding a medium for recording and reproducing together with the first magnetic head, and is rotatable in opposition to the first magnetic head. a second carriage with possible pivoting means;

a pressing means for pressing the second carriage to bring the first magnetic head, the medium, and the holding element into close contact with each other in a desired relationship;

This is one of the most suitable embodiments of a magnetic recording device consisting of the following, and FIGS. 8 and 9 are diagrams showing other application examples of the present invention.

FIG. 1 is a sectional view of a main part of a carriage in a magnetic recording apparatus of the present invention, and FIG. 2 is a plan view thereof. and the second
The upper half of the figure has been partially removed to make the explanation easier to understand.

In FIGS. 1 and 2, a motor 1 for chucking a disk 2, which is a medium for recording and reproducing, and rotating it in the direction of arrow 3, is fixed to a frame 9; holds a guide shaft lO as a guide means.

The lower head 8 as a first magnetic head is provided with a moving driving means (not shown), and is made of, for example, a flexible lower gimbal 8a, for example, made of a plastic material.
The lower carriage 7 as a first carriage mounted via the lower head stand 14, which is an insulator, is driven by the movement of the moving drive means and is guided by the guide shaft 10 and slides in the direction of the arrow 12. It is a structure that moves.

On the other hand, the upper head 3, which is a clamping element that clamps the disk 2 and serves as a second magnetic head, is connected to an upper gimbal 3a having flexibility, for example, and an upper head stand 15, which is an insulator, and is made of, for example, a plastic material. It is made of an extremely thin and flexible plate-shaped metal material, for example, about (0.05 mm) to (o.3 mm), and is mounted through a flexible suspension 4a and suspension 4b at one end. The rigidity of the ultra-thin and flexible plate metal material is improved to hold the two suspensions 4a and 41) on both sides. ), the upper carriage 4 as a second carriage which has a protrusion 4C is attached to the lower carriage 7 via the suspension 4a and the suspension 41). The carriage 4 is fixed by a screw 13 provided as a fixing means, and the screw 13 constitutes a supporting means for supporting the upper carriage 4 together with the upper carriage mounting portion 7C of the lower carriage 7. For example, the disk 2 is supported by the lower carriage 7 by the supporting means, and the lower head 8 and the upper head 3 are configured to sandwich the disk 2.

The upper carriage 4 is connected to the suspension 4.
A and the flexibility of the suspension 4b constitute a rotating means, and as will be described in detail later, there is a biasing structure that contacts and biases the arm 41 of the upper carriage 4 shown by the two-dot chain line in FIG. 17, the upper carriage 4 is brought into contact with the lower head 8 by the function of the rotation means.
It has a structure that allows it to rotate in opposition to the

On the other hand, as described above, in a magnetic recording device having a structure in which the disk 2, which is a medium for recording and reproduction, is sandwiched between the lower head 8 and the upper head 3 for recording and reproduction, it is possible to The mutual contact condition that does not allow even a gap, that is, the head touch, directly affects the recording and reproducing performance of the magnetic recording device.As a measure to improve the head touch, the lower head 8 and the upper head 3 mentioned above are constitutes a pressing means for pressing the disc 2 in a sandwiched state.

Specifically, first, a torsion coil spring 5 is arranged, and the torsion coil spring 5 is supported by a spring support 7a extended to the lower carriage 7, and with torsional moment energy stored, one end is attached to the lower carriage 7. The other end presses the upper carriage 4 with a required pressing force.

Then, the spring hooks 7b are configured in multiple stages at required positions,
The restraining position of one end of the torsion coil spring 5 is configured to be switchable (not shown), and the pressing force can be finely adjusted to a required pressing force, and the torsion coil spring 5 does not need to have a precise configuration.

Regarding the structure of fixing the upper carriage 4 to the lower carriage 7 via the suspension 4a and the suspension 4b described above, the suspension 4a and the suspension 4b, which are clearly illustrated in FIG. As shown in FIG. 1, the retaining portion 4d is sandwiched between the upper carriage mounting portion 7C of the lower carriage 7 and the suspension holder 6 configured as a clamping means for clamping the upper carriage 4, and the screw 13 The screws 13 are fixed by fixing the lower head 8 and the upper head 3 by setting the relative positional relationship between them to a predetermined required positional relationship.

In order to clearly illustrate the holding part 4d in FIG. 2, half the cross-section of the suspension holder 6 is removed in the illustration of the upper half, but originally the upper half was also shown in the lower half. It is arranged in a completely symmetrical manner and is functional.

On the other hand, as an effective position adjustment means for setting the relative positional relationship between the lower head 8 and the upper head 3 to a predetermined required positional relationship, on the other hand, as shown in FIG. A plurality of bosses 4f are provided as means for positionally guiding the → suspension holder 6 as shown in FIG. 6 is provided with a guide hole 6b that engages with the boss 4f and is guided in position, and constitutes a notch 6a that is located at approximately the same plane position and has approximately the same shape as the notch 4e, and 4d and the suspension holder 6 are combined as shown in FIG. 1, and gripped by, for example, circular jigs 18a and 18b as shown by the two-dot chain line in FIG. 2, and the jigs 18a and 18b are positioned When moved, the holding portion 4d and the suspension holder 6 are configured to integrally move to a driven position.

As mentioned above, the holding part 4d is made of an extremely thin and flexible plate-shaped metal material, for example, about (0°zO-05mm) to (0.3mm), and as mentioned above, the holding part 4d is made of a flexible plate metal material.
As a means to prevent deformation due to the gripping force when the grips 8a and 18b are gripped, one end is bent to form a rib 4g as shown in FIG. The rigidity of the metal material has been improved.

The structure of the flexible upper gimbal 3a on which the above-mentioned upper head 3 is mounted will be described in detail later, but the signal line 16 that exchanges signals with the upper head 3 is connected to the above-mentioned upper carriage. The inside of the protruding portion 4C configured as 4 is wired.

By the way, regarding the rotation means configured by the flexibility of the suspension 4a and the suspension 4b, as shown in FIG. As a damper means for stabilizing the operation of the rotation means, an elastic damper 11 made of, for example, a soft elastic rubber material or a foam cushioning material is installed.
The damper 11 is configured to be larger than the gap formed by the suspension holder 6, the suspension 4a, and the suspension 4b when it is alone, and when mounted as shown in FIG. 1, it is compressed and generates a compression reaction force. It has a structure that emits .

The compressive reaction force applies pressurization to the suspension 4a and the suspension 4b, thereby forming damper means for absorbing vibrations of the suspension 4a and the suspension 4b.

The performance of the magnetic head, which serves as a signal conversion element of a magnetic recording device, is delicately affected by the influence of disturbance noise such as electric field noise and magnetic field noise. 0,05mm)～(0,
The upper carriage 4 is made of a plate-shaped metal material that is extremely thin (about 3 mm) and has flexibility. Peripheral wall 4h surrounding 3
It consists of

In order to achieve its purpose, the shielding means requires a required surface area, a required thickness, and a required positional orientation, and it goes without saying that the shielding means should have a large surface area and a large thickness. As described above, the structure of the present invention is such that the entire upper carriage 4 has a shielding effect of, for example, (0.05 mm) to (0.3 m).
It is made of an ultra-thin and flexible plate-shaped metal material of about 1.0 m), and has a sufficiently effective surface area to protect the above-mentioned upper head 3 and the lower head 8 from the disturbance noise, etc. ing.

Regarding the directionality of the arrangement position, disturbance noise that invades the upper head 3 and the lower head 8 is prevented as follows.

(2) Disturbance noise that enters from a direction substantially intersecting the disk 2 is protected by a surface of the upper carriage 4 that extends in the same plane as the disk 2.

(2) Disturbance noise that enters from substantially the same plane as the disk 2 is protected by the peripheral wall 4h formed on the upper carriage 4.

The above-mentioned shielding means exhibits the following shielding function by making necessary selections and combinations of the constituent materials of the upper carriage 4tJ-.

■For example, if it is made of a plate-like material made of iron, which is a magnetic material,
Effective in protecting against disturbance noise such as magnetic field noise.

■For example, if it is made of a copper-based plate material that is a good conductor,
Effective in protecting against disturbance noise such as electric field noise.

(2) For example, if it is made of a plate-like material made of iron, which is a magnetic material, and further subjected to a copper-based surface plating treatment, it is effective in protecting against disturbance noise such as magnetic field noise and electric field noise.

(2) For example, if it is made of a copper-based plate material that is a good conductor and is further subjected to iron-based surface plating, etc., it is effective in protecting against disturbance noise such as magnetic field noise and electric field noise.

As described above, the shielding means of the present invention exhibits a sufficient shielding function because the entire upper carriage 4 is made of, for example, a thin and flexible plate-shaped metal material as described above. There is no need to construct a shielding means that adds a full-scale shielding member, etc., and the purpose is achieved with an extremely simple structure.

In the above-described magnetic recording device of the present invention, the 10 m
The second carriage structure having a rotatable rotating means opposite to the air head has been described in a static state, but now the description will be expanded to include dynamic elements.

1) will be explained based on FIGS. 3 and 4.

Figures 3 and 4 show magnetic recording of the present invention! It is a detailed view of the main part of the carriage in the Is' position, and is a diagram for explaining in more detail the rotating means of the upper carriage 4 described above in FIGS. 1 and 2, and the damper means as well.

In FIG. 3, the upper carriage 4 is provided with the damper 11 mentioned above in FIG.
The disc 2 is held between the lower head 8 and the upper head 3.

Then, the damper 11 is configured to include the suspension 4a.
While pressing the suspension 4b against the upper carriage mounting portion 7C of the lower carriage 7 described above in FIG. 1,
A structure in which the arm portion 4j provided at one end of the protruding portion 4C, which is configured as a means for removing the flexibility of the portion other than the suspension 4a and the suspension 4b described above in FIGS. 10 and 2, is also pressed in the same manner. The pressing force of the damper J1 is, when the disk 2 is sandwiched between the lower head 8 and the upper head 30 shown in FIG.
It is composed of a pressing force PL and a pressing force P2 shown in the shaded area in the figure, and the pressing force P1 is larger than the pressing force P2, that is, the pressing force is large on the fixed side of the upper carriage 4, and the pressing force is large on the side of the upper head 3. The lower head 8 and the upper head 3 are configured to gradually decrease as they move to the 0th line, and as a measure to improve head touch as described above in FIGS.
Care has been taken not to affect the pressing force of the torsion coil spring 5 which presses the clamped state with a required pressing force.

In FIG. 4, the upper carriage 4 is shown in FIGS. 1 and 2.
The publishing structure 17 contacts and urges the arm 41 of the upper carriage 4 described above in the figure, and rotates as it contacts and urges the arm 41 of the upper carriage 4 from the direction of the arrow 19. Close the head 3 by -t and press the disk 2.
It constitutes a state where it can be inserted and removed.

In this rotating state, the upper carriage 4 is in contact with a cover 23 which is provided with a smooth sheet 24 made of, for example, Teflon material and is attached as a means to protect at least the main parts of the apparatus.

For the sake of explanation, a cartridge 2a that accommodates the disk 2 and allows it to be inserted and removed is shown by a two-dot chain line in the figure, and the cartridge 2a moves in the direction of arrow 22.

To explain the rotation state in detail, as described above in FIG.
When the upper carriage 4 is rotated while being pressed, the arm portion 4j comes into contact with the upper carriage mounting portion 7C and forms a rotation fulcrum, and as shown in FIG. 4b is elastically deformed and rotated, and the pressing force of the damper 11 is applied to the shaded area in the figure in the state in which the upper head 3 is displaced from the lower spatula r8 and the disk 2 shown in FIG. The pressing force shown in P3. The pressing force P4 is larger than the pressing force P3, that is, it is configured to increase tlJ as it moves from the fixed side of the upper carriage 4 to the upper head 3 side. Even if the upper carriage 4 is in the state shown in FIG. 4 and is subjected to external disturbances such as severe vibrations or shocks, consideration is given to protecting it by the pressing force of the damper 11, thereby increasing the durability of the suspension 4a and the suspension 4b. Conventionally, when transporting a magnetic recording device, a dummy medium or the like was attached to prevent the rotating means from deteriorating, and the second carriage was handled in a non-rotating state. However, according to the damper means of the present invention, the durability is significantly improved, making it unnecessary to install a dummy medium, etc., thereby providing an inexpensive and highly reliable magnetic recording device.

Furthermore, when the upper carriage 4 widens by 1iP and tlJ due to disturbances such as intense vibrations and IMi strikes, the upper carriage 4 is rotated by means for suppressing the rotation of the upper carriage 4 at the front of the suspension sunpolder 6. The tip portion 6 configured as
Consideration has been given to suppressing the swing by contacting C.
The suspension 4a and the suspension 4b do not undergo plastic deformation and have improved mechanical durability, and even if the cover 23 described above in FIG. 4 is not provided, the damper 11 described above is not provided. In both cases, this objective can be achieved, and as a matter of course, according to the rotation suppressing means of the present invention,
Similar to the above, in order to prevent deterioration of the rotating means due to severe vibrations and shocks that occur during transportation of the magnetic recording device, etc., a dummy medium or the like is installed, and the second carriage is placed in a non-rotating state. This provides an inexpensive and highly reliable magnetic recording device that does not need to be handled separately.

Incidentally, the structure of the upper carriage 4 of the present invention is as follows:
For example, as described above in Figures 1 and 2, (0.05mm
) ~ (0.3 mm) It is constructed from an extremely thin and flexible plate-shaped metal material, and it is extremely lightweight, eliminating the need for shielding materials to protect the magnetic head from external noise, etc. It should be noted that the vibration resistance of the upper carriage 4 is extremely high even when subjected to disturbances such as strong vibrations and impacts as described above.

On the other hand, regarding the lower gimbal 8a, which is flexible, for example, on which the lower head 8 is mounted and the upper gimbal 3a, which is flexible, on which the upper head 3 is mounted, as described above in FIG.
This will be explained in detail with reference to FIG.

Fig. 6 is a detailed view of the gimbal, and Fig. 7 shows in detail the state in which the head is mounted through the gimbal of Fig. 6.
- An off-track explanatory diagram illustrating the mechanism of the rack.

Although FIG. 6 is explained using the lower gimbal 8a described above in FIG. 1 as an example, the upper gimbal 3a also has a completely similar structure.

The lower gimbal 8a to which the lower head 8 is attached has independent elastic fulcrums 8X and 8y on the X and Y axes, respectively, as shown in the figure.
It has flexibility in the directions of arrow 20 and arrow 2].

The lower head 8 is attached to the lower carriage 7 via the flexible lower gimbal 8a and the lower head stand 14 described above in FIG.
The upper gimbal 3a and the first gimbal have similar flexibility.
The state in which the upper head 3 is mounted on the upper carriage 4 via the upper head stand 15 mentioned above in the figure is as shown in FIG.
As described above with reference to FIGS. 1 and 2, when the lower head 8 and the upper head 3 sandwich the disk 2 and press it with a required pressing force, the lower gimbal 8a and the upper gimbal 3a are deformed, respectively. self-stabilize.

ΔX2 caused by tilting of the upper head 3 in the self-stabilizing state
is the off-track amount of the upper head 3, and similarly, ΔX1 caused by the tilt of the lower head 8 is the off-track amount of the lower head 8.

The off-track caused by this mechanism is
As described above with reference to FIGS. 12 and 13 of the conventional example, this occurs when the suspension constructed on the upper carriage is deformed into a substantially arched shape, but in the above-described rotation means of the present invention, , as detailed in FIGS. 3 and 4,
The damper 11 connects the suspension 4a, the suspension 4b, and the arm portion 4j to the upper carriage mounting portion 7c.
The upper carriage 4 is not lifted up, and the arm portion 4j is in contact with the upper carriage mounting portion 7c to form a rotation fulcrum.
There is no sinking of the upper carriage 4, and the upper carriage 4 maintains a stable state even when subjected to severe vibrations or shocks, thereby preventing the occurrence of off-track caused by the mechanism described above in FIG. 7, The relative positional relationship between the recording/reproducing position of the medium and the head is extremely stable.

Furthermore, the suspension 4a and the suspension 4 described above
There is no change in the distance from the position where the upper carriage 4 is fixed with the screw 13 to the upper head 3 via b, and there is no radial positional deviation, that is, off-track, with respect to the recording/reproducing position of the disc 2. Also, the above-mentioned upper head 3 does not occur.

The disk 2 and the lower head 8 are designed to ensure mutual contact, that is, good head touch, which does not allow a gap of even a few submicrons, and to stably record and reproduce information between magnetic recording devices. Media compatibility is extremely stable.

2) will now be explained based on FIG.

FIG. 5 is a detailed sectional view of the main part of the carriage in the magnetic recording apparatus of the present invention, and further details regarding the rotating means for the upper carriage 4 described above in FIGS. 1, 2, 3, and 4. It is a diagram for explaining in detail, showing the AA cross section of FIG. 2,
In order to make the drawing easier to see, the drawing projection position has been changed.

In FIG. 5, as detailed in FIG. 3, the upper carriage 4 is equipped with the damper 11 described in FIG. 1 between the suspension holder 6, the suspension 4a, and the suspension 4b. The damper 11 has a structure in which the suspension 4a and the suspension 4b are pressed against the upper carriage mounting portion 7c of the lower carriage 7, and the arm portion 4j described above in FIG. 3 is also pressed in the same manner.

The arm portion 4j has a first arm portion 4j at the left and right positions in FIG.
-1 and a second arm portion 4j-2, and the third arm portion 4j-1 and the second arm portion 4j-2 abut against the upper carriage mounting portion 7c, as shown in FIGS. The upper carriage 4 constitutes a rotation fulcrum of the rotation means detailed in FIG. 4, and the upper carriage 4 prevents the suspension 4a and the suspension 4b from being twisted in plane, as described above in FIG. 11 of the conventional example. This suppresses the slight vibrations caused by the stick-slip behavior of the head, resulting in extremely good head tadge.

In other words, the upper head 3 shown in FIG. 1 does not cause a relative positional shift in the circumferential direction with respect to the recording/reproducing position of the disk 2, and in other words, the recording/reproducing timing is stable and the magnetic This is extremely effective in increasing the capacity of recording devices.

3) Next, the spatula 12 position adjustment means will be explained.

As mentioned above in the conventional magnetic recording device, the recording/reproducing position of the medium is standardized and defined in order to maintain data compatibility, and in particular, the relative position of the lower head 8 and the upper head 3 shown in FIG. The relationship has a strict predetermined value, and mutual position adjustment is delicate.

Therefore, effective position adjustment means for predetermining the relative positional relationship between the lower head 8 and the upper head 3 of the present invention as shown in FIGS. 1 and 2 and described above to a required positional relationship is to By combining the holding portion 4d and the → suspension holder 6 as shown in FIG. 1, for example, a circular jig 18a and a
8b, move the jigs 18a and 18b, and hold the suspension holder 6 and the holding part 4d.
It is constructed in a structure that allows the driven position to be moved integrally.
As mentioned above, even if the jigs 18a and 18b are used for clamping and V-clamping, the clamping force is not absorbed by the suspension holder 6, which is a highly rigid body, and is made of, for example, an extremely thin and flexible plate-shaped metal material. Holding section 4 of the upper carriage 4
d moves to a driven position integrally with the suspension holder 6 without deformation, and the upper carriage 4
The position adjustment does not generate stress that would affect the position of the upper head 3 even slightly, and the correspondence between the above-mentioned position adjustment amount and the position adjustment amount of the upper head 3 is clear,
The position adjustment of the upper head 3 can be performed extremely stably and easily, realizing high-speed automation of the position adjustment,
Ta.

On the other hand, as mentioned above, the upper carriage 4 is, for example, (0,
It is made of an ultra-thin and flexible plate-shaped metal material of about 0.05 mm) to (0.3 mm), and when gripped with the jigs 18a and 18b as described above, The structure is such that the clamping force is not received by the suspension holder 6, which is a highly rigid body, but there are cases where the clamping force is not received by the holding part 4d due to, for example, dimensional variations in various places. As a means to prevent deformation due to the clamping force even if it occurs, as shown in FIG. Since the rigidity of the plate metal material is improved, even if it is clamped with the jigs 18a and 18b as described above, it will not be deformed by the clamping force, and the driven position will move integrally with the suspension holder 6. This allows for the exact same position adjustment as described above.

Incidentally, as a matter of course, the catch m means is the jig 18 described above.
It is not only effective as a means for preventing deformation due to the gripping force when gripping is performed by a and 18b, but also reinforcing the second carriage alone, that is, preventing deformation of the flexible rotating means. I would also like to add that it is an effective means of preventing this.

In FIG. 1, the supplementary means 91 has a rib 4g-? which is formed by bending one end of the holding portion 4d. 1, but the reinforcing means (with the previous symbol) retaining the flexibility of the suspension 4a and the suspension 4b, and forming a protruding part thicker than the plate thickness of the holding part 4d in a part of the holding part 4d ( (Illustrations omitted)
However, it performs the same function as described above.

Regarding the head position adjustment means of the present invention described above in 4) and 3), more stable position adjustment of the upper head 3 will be described.

Effective position adjustment means for predetermining the relative positional relationship between the lower head 8 and the upper head 3 shown in FIG. For example, ff1211
A notch in the shape of a V character as shown in FIG. 1 is formed, and the notches are combined as shown in FIG. By moving the jigs 18a and 18L+, the holding portion 4d and the suspension holder 6 are integrally moved to a driven position, and the arrangement position of the position adjustment means is shown in FIG. As shown in the figure, the suspension 4 serves as a means for rotating the upper carriage 40.
a and the suspension 4b are located at a position that will not have the same physical effect even if they are clamped by the circular jigs 18a and 18b, that is, based on the position of the screw 13 used as the means for fixing the upper carriage 4. , and is disposed substantially opposite to the position of the rotation means.

As for the position of the position adjusting means, it does not necessarily have to be on the opposite side from the position of the rotating means with respect to the position of the screw 13, but as long as it is located near the screw 13, as follows. Function to describe.

It has already been experimentally confirmed that it is effective.

According to the position adjustment means, 1) temporarily tighten the screw 13 with the required tightening torque, and attach the holding portion 4d to the upper carriage mounting portion 7c of the lower carriage 7 and the suspension holder 6 described above in FIG. The jigs 18a and 1 are held together by the circular jigs 18a and 18b described above, for example, and are held in a moderately movable state.
8b was moved, the holding part 4d and the suspension holder 6 were integrally moved to the driven position, and the relative positional relationship between the lower head 8 and the upper spatula 1!3 was adjusted to the required positional relationship. After that, in the process of tightening the screw 13 to the required tightening torque to fix the position, for example, when temporarily tightening the screw 13, temporarily tightening the screw 13 by exceeding the required tightening torque, A weak lock state occurs in the integral driven position movement of the holding portion 4d and the suspension holder 6, and the jig 18
Even if the positions of a and 18b are forcibly moved, the positional movement biasing stress generated by the forced positional movement is not transmitted to the side of the upper head 3 of the upper carriage 4, and as described above, As shown in FIG. 2, the position adjusting means is arranged on the side substantially opposite to the position of the rotating means with reference to the position of the screw 13 as the fixing means for the upper carriage 4. Due to this arrangement, no phenomenon that would cause any change in the position of the upper head 3 occurs.

By the way, in 3), in order to maintain the compatibility of data in the magnetic recording device mentioned above, delicate positional adjustment of the relative positional relationship between the lower head 8 and the upper head 3 with respect to the recording/reproducing position of the medium specified with strict positional accuracy is necessary. is, for example, only a few microns, and when performing the delicate position adjustment, according to the position side adjustment means of the present invention, as described above, the arrangement position of the position adjustment means can be adjusted as shown in FIG. As shown in the figure, with reference to the 130° position of the screw serving as the fixing means for the upper carriage 4, the screw is disposed on the side substantially opposite to the position of the rotating means, as shown by the two-dot chain line in FIG. For example, circular jig 1
8a and 18b, clamp and tighten the jigs 18a and 18b.
The stress generated from the clamping force and positional movement bias does not cause any phenomenon that would cause any change in the position of the upper head 3.
1] can be configured with a strong means for firmly gripping and holding the position, and the jig 18
If the screws 13, which serve as fixing means for the upper carriage 4, are tightened while a and 18b are still in position, the suspension holder 6 and the holding portion 4d may be slightly loosened when the screws 13 are tightened. Position changes can be suppressed.

As described above, according to the position adjustment means of the present invention, the position adjustment of the upper head 3 is not only easy, but also the position fixing of the upper head 3 is extremely stable, and there is no need for the feeling or bones of the position adjustment. This enabled high-speed automation of position adjustment.

In one embodiment of the present invention, the screw 13 has been described as an example of the fixing means for the upper carriage 4, but the fixing means may also be constructed by caulking, welding, gluing, etc. Needless to say, similar effects can be obtained.

5) Next, the lower head 8 and upper head 3 described above
The standards and necessary conditions for adjusting the relative positional relationship of the two to the required positional relationship will be explained.

As mentioned above in the conventional example, the absolute position reference for the position adjustment is the required signal recorded on the medium, and while tracking and reproducing the signal with the lower head 8 and the upper head 3, the required relative position is adjusted. This is to adjust the position according to the positional relationship.

As described above, the lower head 8 and the upper head 3
In a magnetic recording device having a structure in which recording and reproduction are performed by sandwiching the disk 2, for example, the above-mentioned measures are taken to ensure mutual contact that does not allow a gap of even a few submicrons, that is, good head touch. A means for pressing the disc 2 between the lower head 8 and the upper head 3 is required, and the pressing means of the present invention is as follows:
As shown in FIG. 1 and described above, the torsion coil spring 5 is supported by the spring holder 7a extended to the lower carriage 7, and one end is attached to the spring holder 7b provided to the lower carriage 7 in a state in which torsional moment energy is stored. , and the upper carriage 4 is pressed with the required pressing force,
The head position adjustment means and upper carriage 4 fixing means described in 3) and 4) and the upper carriage 4 described in FIG.
The pressing force has no physical effect on the zero rotation means, etc., and the pressing force does not change, ensuring the above-mentioned good head touch and recording on the medium. The required signals are transmitted to the lower head 8 and the upper head 3.
The position can be easily adjusted to a required relative positional relationship while tracking and reproducing each of them, and furthermore, even if the above-mentioned fixing means of the mechanical carriage 4 is fixed after the position adjustment, the required relative positional relationship will not be maintained. There will be no change in the .

As described above, according to the means for pressing the disk 2 between the lower head 8 and the upper head 3, which is constructed as a measure to ensure good head touch according to the present invention, the required signals recorded on the medium can be transferred. While tracking and reproducing the lower head 8 and the upper head 3, it is not only possible to easily adjust the position to a desired relative positional relationship, but also to eliminate the need for feeling or bones during the position adjustment, thereby realizing high-speed automation of position adjustment. It was realized.

6)9 Next, the mounting structure of the upper head 3 described above will be explained.

The mounting structure of the upper head 3 shown in FIG.
For example, an upper gimbal 3a having flexibility, an upper head stand 15 made of, for example, a plastic material, and an insulator.
The above-mentioned lower carriage 4 has a shielding function to protect the magnetic head as a signal conversion element of the magnetic recording device from disturbance noise such as electric field noise and magnetic field noise. From the perspective of the upper carriage 4
In other words, if a grounding relationship is established with the head as the signal conversion element, it will act as an antenna for the head, and in order to effectively fulfill the above-mentioned shielding function, it is necessary to It is preferable to configure the upper head stand 1 so that it is electrically and magnetically non-conducting.
5, the upper head stand 15 is made of, for example, a plastic material as described above, is an insulator and non-magnetic material, and has the role of effectively fulfilling the shielding function of the upper carriage 4 described above. ing.

Incidentally, as mentioned above, the upper carriage 4 has, for example, (0,
It is composed of two extremely thin and flexible metal plates of about 0.05 mm) to (0.3 mm), and the upper head 3 is connected to the upper head 3 via the flexible one-L gimbal 3a described above. When mounting, there are restrictions on the shape, etc., but by intervening the two-head stand 15, even complex mounting parts can be provided without difficulty.

7) Sixth, the state of insertion and removal of the medium will be explained based on FIG.

As described above in 1) based on FIG. 4, the upper carriage 4 is attached to the biasing structure 17 indicated by the arrow 19, which contacts and biases the arm 41 of the upper carriage 4 described above in FIGS. 1 and 2. The upper head 3 is rotated while being urged into contact with the lower head 8 and the disk 2, thereby configuring a state in which the disk 2 can be inserted and removed; In this case, the upper carriage 4 is in contact with a cover 23 provided with a smooth sheet 24 made of, for example, Teflon material and configured as a smooth surface means.

For the sake of explanation, a cartridge 2a that accommodates the disk 2 and allows it to be inserted and removed is shown by a two-dot chain line in the figure, and the cartridge 2a moves in the direction of arrow 22.

In the above configuration, the upper carriage 4 which has been rotated due to contact bias comes into contact with the cover 23 provided with the smooth sheet 24 made of, for example, Teflon material, and is prevented from rotating. If the cover 23 were not provided, the rotational position of the upper carrier 2240 would be the abutment biasing state where the biasing structure 17 is abutted and biased in the direction of the arrow 19. Even if the corresponding contact force amount varies slightly as shown in FIG. This results in large variations in the distance between the cartridges 2a and 1fJi, increasing the risk of collision with the cartridge 2a described above.

However, conventionally, the rotating position of the upper carrier 2240 and the cover 23 are configured to have a gap, so that the conditions are exactly the same as those without the cover 23, and the upper head 3 and the cartridge 2a In order to avoid collisions, a large gap is required, making it difficult to make the magnetic recording device thinner.

On the other hand, in view of the fact that modern systems equipped with magnetic recording devices are preferred to be light, thin, short, and small, there has been an increasing demand for the realization of extremely thin magnetic recording devices.

Therefore, the above-mentioned upper carriage 4 of the present invention is replaced with a cover 24 provided with a smooth sheet 24 made of, for example, Teflon material.
According to the stopper means for stopping the rotational position of the upper carriage 4 by abutting against the cover 23, when the upper carriage 4 is actively brought into rotational contact with the cover 23 configured to have a fixed position structure, the upper head 3 can ensure a stable rotational position with little variation, and eliminates the above-mentioned extra gap, making it easy to realize a thin magnetic recording device.

The smooth sheet 24 made of, for example, Teflon material provided on the cover 23 is used to eliminate the contact sound when the upper carriage 4 is in rotational contact and closed, and to maintain the rotational contact state, i.e. , the friction between the upper carriage 4 and the cover 23 is reduced during so-called standby seek, in which the cartridge 2a containing the disk 2 is moved in a removably insertable state according to the movement of the moving drive means. Regarding the stopper means of the present invention, the smooth sheet 2
Even if it does not have 4, its functions can be fully demonstrated.

A smooth sheet 24 made of, for example, Teflon material, provided on the cover 23 serves as a smooth surface means, and is a surface where the cover 23 and the upper carriage 4 come into contact with each other. For example, a smooth coating made of Teflon material or the like can perform the same function as described above.

8) The relative positional relationship between the recording/reproducing position of the zero-order medium and the magnetic head will be explained.

A magnetic recording device is capable of operating even when there are environmental changes in temperature and humidity, and the functions of the magnetic recording device must not be impaired due to such environmental changes.

In particular, the disk 2, which is a medium for recording and reproducing as shown in FIG. 1, expands and contracts in accordance with the expansion rate due to environmental changes. The entire component expands and contracts in the same way, and basically the amount of expansion and contraction of the disk 2 and the amount of expansion and contraction of the entire component of the magnetic recording device depends on changes in the temperature and humidity environment in various parts of the entire component. The magnetic head is constructed by combining and arranging materials having a required expansion rate caused by It has a structure that cancels out the amount of expansion and contraction caused by environmental changes.

However, if the second carriage is made of, for example, a plastic material, as in the conventional example shown in FIG. However, the upper carriage 4 as the second carriage of the present invention has a diameter of (0.05 mm), for example, as described above in FIGS. 1 and 2. ~
(0.3mm) extremely thin and flexible sheet metal XX
The amount of expansion and contraction caused by the environmental changes in temperature and humidity described above is extremely stable, and the cancellation of the amount of expansion and contraction described above is extremely stable and easily obtained according to the basic configuration. , the relative positional relationship between the recording/reproducing position of the medium and the magnetic head, which is the most basic as a magnetic recording device, is as follows:
Regardless of environmental changes such as temperature and humidity, the required positional relationship can always be ensured, and the compatibility of the medium between magnetic recording devices is extremely stable.

9) Next, move the upper carriage 4 of the present invention to, for example, (0
, 05 mm) to (0.3 nzn) and is made of an extremely thin and flexible plate-shaped metal material.

Types of magnetic recording devices are defined by the size of the medium used for recording and reproducing, and large-sized devices have an outer diameter of about 8 inches, and this method is applicable to large-sized media. In the magnetic recording device, if the upper carriage 4 is made of an extremely thin and flexible plate-shaped metal material of, for example, about 0.3 mm, the above-mentioned second carriage of the present invention can be used. Functionality is configurable.

On the other hand, regarding the small size of the above-mentioned media, JIIS! Reflecting the I, the outer diameter of the medium is approximately 1 inch. The development of ultra-small media is progressing, and in magnetic recording devices applied to these ultra-small media, the upper carriage 4 has a diameter of 0.05 mm, for example.
If it is made of a very thin and flexible plate-shaped metal material on the order of mm, it is possible to perform the function as the second carriage of the present invention described above.

Regarding the magnetic recording apparatus applied to the ultra-small medium, the structure of the upper carriage 4 of the present invention is extremely simple and extremely useful for miniaturizing the apparatus configuration.

Needless to say, magnetic recording devices that have already been put into practical use include those in which the aforementioned medium outer diameter is approximately 8 inches, the medium outer diameter is approximately 5.25 inches, and the medium outer diameter is approximately 3 inches. .5 inches, the outer diameter of the medium is about 3 inches,
There are many types of media with an outer diameter of about 2.5 inches, and of course, the present invention, for example, (0.05 mm)
The upper carriage 4, which is made of an ultra-thin and flexible plate-shaped metal material of about 0°3 mm, provides a magnetic recording device that is applicable to the medium outer diameter. Regarding the material composition of the upper carriage 4, it is possible to easily configure the upper carriage 4 by selecting a material with the required thickness from the thickness range of (0.05 mm) to (0.3 mm) mentioned above. I'll add it.

As mentioned above, the second carriage structure in the magnetic recording device of the present invention, which has a rotating means that can rotate opposite to the first magnetic head, has a number of practical effects. In particular, for example (0,'05mm)
The upper carriage 4, which is made of an ultrathin and flexible plate-shaped metal material of about 0°3 mm, can be easily provided by processing means such as press working, and can be easily provided. With this structure, it is possible to mass-produce inexpensive and highly reliable magnetic recording devices.

Next, other application examples will be explained with reference to FIGS. 8 and 9 regarding the second carriage structure having a rotating means that can rotate opposite to the first magnetic head in the magnetic recording device of the present invention. do.

FIG. 8 shows another example of application of the present invention, and is a sectional view of the main part of the carriage, and FIG. 9 is a plan view thereof.

Comparing FIG. 8 and FIG. 1, and FIG. 9 and FIG. 2, the difference in structure is that the structure of the upper carriage 4 as the second carriage described above in FIGS. 1 and 2 is different. However, other structures are completely the same, and the following explanation will omit the same structural parts.

In FIG. 8 and FIG. 9, a moving drive means (not shown)
The lower carriage 7, which serves as a first carriage, is structured to slide and move according to the articulated movement of the moving drive means.

On the other hand, it is a clamping element that clamps the medium, and is equipped with a pad 33 made of felt material made of fibers, etc., and is extremely thin and flexible, for example, about (Q, 05 mm) to (0,3 mm). A suspension pin 34a made of a plate-shaped metal material and having flexibility at one end, the suspension 34
b, and the two suspensions 34a and 34b are held on both sides by increasing the rigidity of the ultra-thin and flexible sheet metal material. and suspension 34
1], the pad holder 34, which is a second carriage and has a protrusion 34c, is fixed to the lower carriage 7 via the suspension 34a and the suspension 34b. It is.

The cross IS holder 34 constitutes a rotating means by the flexibility of the suspension 34a and the suspension 34b, and has a rotatable structure.

To explain the rotation means in more detail, a protrusion 34c is configured as a means for eliminating flexibility in a portion other than the suspensions 34a and 34b, and an arm 34j is provided at one end of the protrusion 34c. As shown in FIG. 9, the arm portion 4j has a first arm portion 34j-1 and a second arm portion 34j-2 at both end positions.
-1 and second arm portion 34j-2 are in contact with the upper carriage mounting portion 7C of the lower carriage 7, and have the same functions as those described above with reference to FIGS. 3, 4, and 5. It constitutes a rotation fulcrum of the rotation means, and prevents the suspension 34a and the suspension 34b from being twisted in a plane.

The suspension 34a and the suspension 3
41), Figures 1, 2, and 3.

Damper 1 similar to the content described above in Figures 4 and 5
1 and has the same functions as those described above.

It is proving effective.

Note that the pad 33 mounted on the pad holder 34
The pad holder 34 has a substantially cylindrical shape, and the pad holder 34 is structured to surround the pad 33 as shown in FIG. 8, and when combined as shown in the figure, This structure restricts the position of the pad 33.

The pad 33 is fixedly mounted using a fixing means such as double-sided adhesive tape, and no other special mounting means is required for this mounting.

In the applied example of the present invention, a holding element for holding a medium is mounted with a pad 33 made of, for example, a felt material made of coarse material. Although the shielding effect described above in FIG. 2 does not have the same function, the pad holder 34 functions as a shield at least for the lower head 8 as the first magnetic head.

For example, (0.05 mm) to (0
The pad holder 34, which is made of a flexible plate metal material with a pole ↑W of about 3 mm), is configured to surround the pad 33 so as to embrace it, as shown in FIG. The means can be easily provided, for example, by processing means such as press working.

[Effects of the Invention] As described above, the present invention achieves many of the above-mentioned Okawa effects among the embodiments of the present invention, and in particular, the magnetic recording device of the present invention has a simple structure. and presses a second carriage having a rotating means that is rotatable in opposition to the first magnetic head, and brings the first magnetic head, the medium, the T-element, and the I-element into close contact with each other in a desired relationship. The pressing means constitutes a stable and good head touch, and is particularly effective in adjusting the relative positional relationship of the clamping element with respect to the first magnetic head. It facilitates fine adjustment of the pressing force of the means, and the configuration of the pressing means does not need to be precise;
It can be configured at low cost, easily configures good head touch, and facilitates high-speed automation of position adjustment of the relative position of the holding element with respect to the first magnetic head, and is inexpensive and reliable. This makes it possible to mass-produce magnetic recording devices with high performance, and the practical effects of the present invention are extremely large.

[Brief explanation of the drawing]

1st Sae 1. 7 shows one of the most suitable embodiments of the magnetic recording apparatus of the present invention, and FIGS. 8 and 9 show other application examples of the present invention. FIG. 1 is a sectional view of a main part of a carriage in a magnetic recording apparatus of the present invention, and FIG. 2 is a plan view thereof. 3 and 4 are detailed views of the main parts of the carriage in the magnetic recording apparatus of the present invention. FIG. 5 is a detailed sectional view of the main part of the carriage in the magnetic recording device of the present invention. FIG. 6 is a detailed view of the gimbal, and FIG. 7 is an explanatory view of off-track. FIGS. 8 and 9 show other application examples of the present invention.
The figure is a sectional view of the main part of a carriage according to another application example of the present invention, and FIG. 9 is a plan view thereof. FIGS. 10, 11, 12, and 13 are diagrams explaining conventional examples. FIG. 10 is a sectional view of the main part of a carriage in a conventional magnetic recording device, and FIG. FIG. 3 is a perspective view of main parts. FIGS. 12 and 13 are detailed 4111 sectional views of main parts of a carriage in a conventional magnetic recording device. 3. Upper spatula 1-' 4. Upper carriage 4a, 4b. Suspension 4e, 6a.
Notch 4b Peripheral wall 5 Torsional coil spring 6
, , , , Suspension holder 7 , , , , , ,
, Lower carriage 8 , Lower head 9 , Frame 11 , Damper 13 , Screws 15, Upper head stand 23, Cover 24, Smooth sheet 33, Pad 34 , , , , , , Pad holder and above Fig. 10 Fig. 11 Fig. 12 Fig. 13

Claims (1)

[Claims] 1) A first carriage comprising a moving means, on which a first magnetic head is mounted, and which moves according to the articulation of a moving driving means; a carrying means carried by the first carriage; a second magnetic head, which is supported on the first magnetic head and includes a holding element for holding a medium for recording and reproducing together with the first magnetic head, and has a rotating means that is rotatable in opposition to the first magnetic head; A magnetic recording device comprising: a carriage; a pressing means for pressing the second carriage to bring the first magnetic head, the medium, and the nipping element into close contact with each other in a desired relationship; The main part of energy generation,
A magnetic recording device characterized in that it is supported by the first carriage and configured to allow fine adjustment of the pressing energy of the pressing means. 2) The magnetic recording device according to claim 1, wherein the pressing means is constituted by a torsion coil spring.