JPH02304785A - Magnetic head holding mechanism - Google Patents

Abstract

PURPOSE:To prevent a protecting jacket from being abutted to a magnetic head when a medium is inserted and ejected by moving one side magnetic head lower than a spindle surface when the medium is inserted and ejected, setting the head at the same height as the spindle surface at the time of writing and reading and contacting the head to the medium. CONSTITUTION:When a medium 17 is mounted and movable carrier 11 is pushed down toward the medium 17 so as to contact the heads 1a and 1b to the medium 17 in order to execute reading and writing, a stick 13 is engaged with the movable carrier 11 and moved by an arm part 12 and a pressurizing stick 16 is moved upward along an inclined surface 14. Further, by moving the pressurizing stick 16 on a plane part 15, the magnetic head 1a is brought up at the same height as the surface of a spindle 6 and contacted with the medium 17. The magnetic head 1b is faced through the medium 17 to the magnetic head 1a and the position of the magnetic head 1b is determined while being in contact with the medium 17. Thus, even when the protecting jacket is irregularly bent, the protecting jacket is not abutted to the magnetic head 1a and the medium can be inserted and ejected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head holding mechanism for a flexible disk device.

[Conventional technology]

Conventionally, this type of holding mechanism has a magnetic head 1 as shown in FIG.
Similarly to the carrier 3 holding the gimbal spring 2a to which the magnetic head 1b is attached, the gimbal spring 2b to which the magnetic head 1b is attached.
It consists of a movable carrier 4 that holds the. The movable carrier 4 is designed to rotate around a pivot 5, and when a medium is attached or removed, the movable carrier 4 rotates as shown in FIG. 3(a).
It operates in such a way as to raise it upward. Here, the surface of the magnetic head 1a that comes into contact with the medium and slides thereon holds the medium,
It is at the same height as the surface of the spindle 6 to be rotated.

[Problem to be solved by the invention]

Therefore, in order to prevent the holding jacket from hitting the magnetic head 1a when loading and unloading the medium, the rails are mounted as shown in FIG. 3(b), which shows the right side of FIG. 3(a) (the spindle 6 is not shown). 7, the medium 8 is lifted up. However, the holding jacket has a disadvantage in that it is often irregularly curved and cannot necessarily be attached or detached without hitting the magnetic head 1a.

[Means to solve the problem]

The present invention provides a magnetic head holding mechanism in which the magnetic head is lower than the spindle surface when a medium is loaded or unloaded.

That is, according to the present invention, a first magnetic head that slides on one surface of a visible medium to write and read information is held via a gimbal spring that allows the magnetic head to swing. A second plate that slides on the carrier and the other side of the medium.
a second carrier that holds the magnetic head via a gimbal spring that enables rocking movement of the second magnetic head; and an arm that rotates around the pivot point with one end of the first carrier as a pivot point. a rod that engages with the arm and has an inclined surface and a flat portion at one end and is located in the second carrier; and a rod that is located between the rod and the second magnetic head and that rotates as the arm rotates. A magnetic head holding mechanism is obtained which has a pressing rod that pushes the second magnetic head toward the medium or away from the medium by means of the inclined surface and flat portion of the moving rod.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1(a) shows the state when a medium is attached and detached, and the magnetic head 1
There is an arm 12 attached to a movable carrier 11 that holds b.
A rod 13 engages the movable carrier 11 in this arm 12 . The rod 13 has a sloped surface 14 and a flat surface 15 connected to the sloped surface 14 on the side opposite to the engaging portion. Also, the spindle surface 6
A pressure rod 16 is located between the magnetic head 1a, which is set lower, and the rod 13.

When the medium 17 is attached and the movable carrier 11 is pushed down toward the medium 17''\ to bring the licking head for writing and reading into contact with the medium, the rod 13 is engaged with the movable carrier 11 by the arm portion 12, so that the arrow 18 Then, the pressure rod 16 is moved upward by the inclined surface 14 of said rod 16 and further moved toward the first
As shown in Figure (b), the movement is stopped by riding on the flat part 15. At this time, the pressure rod 16 is pressed against the magnetic head 1.
The magnetic head 1a is brought into contact with the medium 17 by raising the magnetic head 1a to the same height as the spindle surface. Also, the magnetic head 1b
is opposed to the magnetic head 1a via the medium 17, and its position is determined while it is in contact with the medium 17.

The movement of the magnetic head 1a at this time is due to the deflection of a gimbal spring having the shape shown in FIG. It depends on the height of the section 15.

Next, in order to make the structure of the present invention easier to understand, FIG. 2 shows a perspective view of the main components of the present invention. Each number in the figure is the same as that used in FIG.

It goes without saying that the rod 13 and the pressure rod 16 in the explanation up to now are held in the carrier 3 by suitable supports except for movement in the movement direction necessary for carrying out the present invention.

〔Effect of the invention〕

As explained above, the magnetic head holding mechanism according to the present invention operates so that one side of the magnetic head is lower than the spindle surface when loading/unloading the medium, and comes into contact with the medium at the same height as the spindle surface during writing/reading. Therefore, the warping of the medium and its protective jacket has the effect of preventing the protective jacket from hitting the magnetic head when the medium is attached or detached. Figure 1 (
1(a) shows the state when the medium is attached and removed, and FIG. 1(b) shows the state when writing and reading. FIG. 2 is a perspective view showing the main parts of an embodiment of the present invention, FIGS. 3(a) and 3(b) are a side view and a front view of a conventional example, and FIG. 4 is a plan view of a gimbal spring.

1...Magnetic head, 2...Gimbal spring, 3...
Carrier, 4... Movable carrier, 5... Pivot point, 6...
- Spindle surface, 7... Rail, 11... Movable carrier, 12 Arm part, 13... Rod, 14... Inclined surface, 15...
... Flat part, 16 ... Pressure rod, 17 ... Medium.

Claims (1)

[Claims] The first part slides on one side of the flexible medium to write and read information.
a first carrier that holds a magnetic head via a gimbal spring that enables rocking movement of the first magnetic head, and a second carrier that holds a second magnetic head that slides on the other surface of the medium. a second carrier held via a gimbal spring that enables rocking movement of the magnetic head; an arm that rotates about the pivot point with one end of the first carrier as a pivot point; a rod having an inclined surface and a flat portion at one end and located in the second carrier; and the rod located between the rod and the second magnetic head and moving as the arm rotates. The second
1. A magnetic head holding mechanism comprising: a pressure rod for pushing the magnetic head toward the medium or moving it away from the medium.