JPH01260665A - Magnetic head supporting mechanism for magnetic recording/reproducing device - Google Patents

Abstract

PURPOSE:To suppress vibration to occur when a magnetic head and a recording medium come into contact with each other by using a composite leaf spring member. CONSTITUTION:A gimbals, etc., 21 to support magnetic heads 22, 24 to be fitted on a carriage 20 is made to be a mechanism consisting of the supporting member of the composite leaf spring member constituted by laminating a high elesticity member 30 and a low elesticity member 31. Accordingly, the vibration due to the contact of an S1 head 24 and the recording medium 26 can be suppressed in a short time. Thus, even in a case that the vibration due to the contact of the S1 head 24 and the recording medium 26 occurs, the vibration can be suppressed, and a situation such that the contact state of the S1 head 24 and the recording medium 26 comes worse can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a magnetic head support mechanism of a magnetic recording/reproducing device having a spring structure such as a gimbal mechanism.

(Prior Art) Conventionally, for example, in a floppy disk drive, a double-sided magnetic head has an SO head mounted on a carriage, and an S1 head supported by a head arm. In this case, each head is supported by a carriage or a head arm via a leaf spring member called a gimbal.

As shown in FIG. 5, the cymbal] 0 consists of a plate in which a slit 11 is formed, and has an area in the center on which a slider 12, which is the main body of the magnetic head, is placed. This gimbal 10 is configured to freely rotate around the X-axis and Y-axis shown in FIG. 5, and when the magnetic head and the recording medium come into contact, the magnetic head A member used to follow movement.

However, since the conventional gimbal 10 has a single plate spring structure, the force generated when the magnetic head and the recording medium come into contact acts on the magnetic head, which may cause large vibrations. If the vibration of gimbal 10 is large,
The contact condition between the magnetic head supported by the gimbal 10 and the recording medium deteriorates, and read/write operations by the magnetic head become unstable.

In order to overcome these drawbacks, there is a method of attaching a dynamic damper (an elastic body such as a rubber member) to the gimbal 0 for vibration suppression. However, attaching the dynamic damper to the gimbal 10 requires troublesome work.

(Problems to be Solved by the Invention) Conventionally, since a gimbal for supporting a magnetic head has a single leaf spring structure, it may vibrate greatly when the magnetic head and a recording medium come into contact. As a result, the contact between the magnetic head and the recording medium deteriorates, and read/write operations may become unstable. Furthermore, there is a method of attaching a vibration suppressing member to the gimbal, but this method requires troublesome work and has the disadvantage that the efficiency of the entire assembly process of the floppy disk device is reduced.

It is an object of the present invention to suppress vibrations caused by contact force when a magnetic head and a recording medium come into contact without requiring a particularly complicated assembly process, and to make the magnetic head more stable and stable.
An object of the present invention is to provide a magnetic head support mechanism for a magnetic recording/reproducing device that can realize the following operations.

[Structure of the Invention] (Means and Effects for Solving the Problems) The present invention provides a magnetic head support mechanism including a gimbal or the like that supports a magnetic head attached to a carriage.
This gimbal etc. is a mechanism consisting of a supporting member of a composite plate spring member formed by laminating a high elasticity member and a low elasticity member.

With the support mechanism having such a structure, the vibration suppressing effect is large due to the support member having a normal single leaf spring structure, and vibrations due to the contact force between the magnetic head and the recording medium can be suppressed. Further, since a member formed by laminating a high-elasticity member and a low-elasticity member is prepared in advance to form a gimbal or the like, troublesome work such as attaching a damper to a gimbal or the like in the assembly process becomes unnecessary.

(Example) The present invention will be described in detail below with reference to the drawings. FIG. 1 is a side view showing the configuration of a carriage mechanism of a floppy disk device in the same embodiment. In FIG. 1, a carriage 20 is equipped with an SO head 22 via a gimbal 21, and is configured to move linearly in the radial direction of the recording medium 2G. One end of the head arm 23 is attached to the carriage 20, and the other end supports an 81 head 24 via a gimbal 25. Each of the heads 22 and 24 contacts the recording medium 26 from above and below, sandwiching it therebetween, and performs read/write operations. Here, S
As shown in FIG. 2 or 3, the gimbal 25 supporting one head 24 is made of a laminated metal material 30 with high longitudinal elasticity made of stainless steel or the like and a metal material 31 with low longitudinal elasticity made of copper or the like. It is constructed from a composite leaf spring member.

Next, the effects of this embodiment will be explained. During the read/write operation of the floppy disk device, the recording medium 26 is rotated as shown in FIG. 1, and each head 22, 24 comes into contact with the recording medium 26 to perform the read/write operation. . In this case, especially the head arm 23
On the side, when the S1 head 24 contacts the recording medium 26, the contact force is applied to cause the gimbal 25 to vibrate.

Here, the gimbal 25 is composed of a composite plate spring member formed by laminating the high longitudinal elasticity metal material 30 and the low longitudinal elasticity metal material 81 as described above. As shown in FIG. 6, this composite leaf spring member has a greater vibration suppression effect than a normal single leaf spring member, especially in the vertical direction (perpendicular to the horizontal recording medium 26). It is known that there is. Therefore, by using the gimbal 25 made of a composite plate spring member having a large vibration suppressing effect, the S1 head 2
It becomes possible to suppress vibrations caused by contact between the recording medium 26 and the recording medium 26 in a short time. As a result, even if vibration occurs due to contact between the S1 head 24 and the recording medium 26, the vibration can be suppressed and a situation where the contact state between the S1 head 24 and the recording medium 26 deteriorates can be prevented. .

Therefore, the S1 head 24 can always reliably perform read/write operations on the recording medium 26.

FIG. 4 is a perspective view showing the configuration of a magnetic head support mechanism used in a hard disk drive. This magnetic head support mechanism is attached to a carriage (not shown) with a metal fitting 4.
0, consisting of a load spring 41 and a gimbal 42,
This gimbal 42 is a mechanism that supports a magnetic head 43. In such a mechanism, by configuring the gimbal 42 or the load spring 41 with the composite leaf spring member shown in FIG. 2 or 3, the magnetic head 42
It is also possible to suppress vibrations that occur when the recording medium comes into contact with the recording medium.

[Effects of the Invention] As detailed above, according to the present invention, by using a composite leaf spring member in the mechanism that supports the magnetic head, vibrations generated when the magnetic head and the recording medium come into contact can be suppressed. Can be suppressed.

Therefore, it is possible to prevent a situation in which the contact state between the magnetic head and the recording medium deteriorates, so that stable read/write operations can be realized at all times.

In addition, since the gimbal, etc. is formed from a composite leaf spring member prepared in advance, and the magnetic head support mechanism is configured using this gimbal, etc., there is no need for troublesome processes such as attaching a damper for vibration suppression to the gimbal, etc. This makes it possible to improve the efficiency of the mechanism assembly process.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the structure of a carriage mechanism of a floppy disk device according to an embodiment of the present invention, and FIGS. 2 and 3 are side views showing the structure of a composite leaf spring member constituting a gimbal of the same embodiment. 4 is a sectional view, and FIG. 4 is a perspective view showing the configuration of a magnetic head support mechanism of a hard disk drive.
FIG. 6 is a plan view showing the configuration of a conventional gimbal, and FIG. 6 is a characteristic diagram for explaining the vibration suppressing effect of the composite leaf spring member of the same embodiment. 21, 25...Gimbal, 22.24.43...Magnetic head, 26...Recording medium, 30...High longitudinal elasticity metal material, 31...Low longitudinal elasticity metal material. Applicant's agent Patent attorney Takehiko Suzue l-~X

Claims (2)

[Claims] (1) A magnetic recording/reproducing device equipped with a magnetic head that reads/writes data to/from a magnetic recording medium, comprising: a carriage for moving the magnetic head in a radial direction of the magnetic recording medium; A magnetic recording/reproducing device comprising: a supporting member having a spring structure for supporting the carriage; Head support mechanism. (2) A magnetic recording/reproducing device equipped with a magnetic head that reads/writes data to/from a magnetic recording medium, comprising: a carriage for moving the magnetic head in a radial direction of the magnetic recording medium; A magnetic head support mechanism for a magnetic recording and reproducing device, comprising a gimbal member that constitutes a gimbal mechanism for support by the carriage and is a composite leaf spring member formed by laminating a high elasticity member and a low elasticity member. .