JPS61284882A - Magnetic converter holding mechanism of double face type flexible disk device - Google Patents

Abstract

PURPOSE:To make a conventional head cover unnecessary, to improve work efficiency, and also to obtain the titled mechanism whose quality is stable, by constituting it so that the first magnetic converter does not contact to a recording medium, when inserting and discharging the recording medium. CONSTITUTION:When read-out is not being executed, an arm 11 is raised by a movement of a bail 16 of a solenoid magnet, the second magnetic converter 6 is separated from a recording medium 9, and the abrasion is suppressed. When inserting and discharging the recording medium 9, the arm 11 is further raised by a cam mechanism which is interlocked with a knob lever shaft 20, and the second magnetic converter 6 is further separated from the recording medium 9. In the same way, when the knob lever shaft 20 is turned in the open direction, a cam 21 rotates and a gap is formed between the tip of the cam and one end of a rotary lever. Therefore, the rotary lever 18 is rotated in the direction as indicated with an arrow by a reset use torsion spring 22, the first arm 24 is drawn down and the first magnetic converter 2 is separated from the recording mechanism 9, and the recording medium 9 can be inserted and discharged without contacting to each magnetic converter 2, 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of a support mechanism for holding a magnetic transducer at a recording/reading position of a magnetic transducer of a nine-sided flexible disk device.

[Conventional technology]

Figures 6 and 7 show the magnetic transducer holding mechanism of a conventional double-sided flexible disk drive. In Figure 0, (1) shows a flexible recording medium (9
) radially moving carriage.

+31 is a gimbal spring fixed with adhesive near the tip of this carriage, (2) is the 11III air converter attached to the center of this gimbal spring, and (5) is the tip when the recording medium (9) is attached. 1 Magnetic conversion! h (head cover to hit 21, f6) is the second magnetic transducer.

An arm (Ill.
Gimbal spring (7) fixed by adhesive near the tip of
It is attached near the center of the (1z is a leaf spring that supports the arm, and one end is fixed to the carriage with a screw etc.
The other end is insert molded into the arm αυ. (13 is installed between the arm +111 and the presser plate α,
It is a coil spring that presses the second magnetic transducer (6) against the recording medium (9). When the second magnetic transducer (6) is pressed against the recording medium (9) by the coil spring α3.

This is a support base that regulates the position so that unnecessary force is not applied. ae is a veil of a solenoid that moves the second magnetic transducer away from the recording medium.

Next, the operation/effect will be explained.

FIG. 7 shows the head unloaded state, and the arm +Il
1 is lifted by the upward movement of the solenoid (not shown) pail aFI, and the second magnetic transducer (6) is slightly separated from the recording medium (9) and is in a non-contact state.

Next, when inserting or ejecting the recording medium (9), the arm αB is further lifted from the bridge mechanism etc. (not shown) K, and the second magnetic transducer (6) and the recording medium (9) are further moved from the Herad unloaded state. The recording medium (9) can be inserted and ejected without coming into contact with the second magnetic transducer (6). The first transducer (2) is supported by a pivot (4), and a helad cover (5) is provided on the upper surface of the pivot (4) at a position slightly below the first magnetic transducer (2). Therefore, when the recording medium (9) is inserted or ejected, the recording medium (9) moves while contacting the upper surface of the first magnetic transducer (2).

During recording and reading, the recording medium (9) is loaded and the bridge mechanism is lowered. Furthermore, the solenoid magnet is attracted, and the pale e is lowered, so that the arm αυ is pushed toward the recording medium (9) by the pressure of the coil spring α3.
The receiver rotates until it is stopped by the support stand α1, the second magnetic transducer (6) presses the recording medium (9), and recording and reading are performed.

[Problem that the invention seeks to solve]

The magnetic transducer holding mechanism of a conventional double-sided flexible disk drive is constructed as described above.

A head cover (5) must be provided to prevent the first magnetic transducer (2) from getting caught on the recording medium (9) when the recording medium (9) is inserted or ejected. It was necessary to control the protrusion height of the first magnetic transducer (2), which caused problems such as very poor work efficiency.

This invention was made in order to solve the above-mentioned problems, and it is necessary to prevent the first magnetic transducer (2) and the recording medium (9) from coming into contact with each other when the recording medium (9) is inserted or ejected. It is an object of the present invention to provide a magnetic transducer holding mechanism for a double-sided flexible disk device that can omit a head cover (5) and has good work efficiency.

[Means for solving problems]

A magnetic transducer holding mechanism for a double-sided flexible disk device according to the present invention includes a first arm.

A first magnetic transducer (2) is attached to the tip of the recording medium (
9) Only when inserting or ejecting the recording medium, one end of the rotary lever biased by a torsion spring comes into contact with a part of the arm to move the arm, separating the first converter from the recording medium, and when loading the recording medium, press the knob lever. A cam fixed to the shaft regulates the position of the other end of the rotary lever, releases the contact with a part of the arm, and presses the first magnetic transducer against the recording medium. .

[Effect]

In this invention, the first magnetic transducer is separated from the recording medium when the recording medium is inserted or ejected, and the 11th! The air transducer is brought into contact with and pressed against the recording medium.

[Embodiments of the invention]

Next, an embodiment of the present invention shown in FIGS. 1 to 5 will be described.

(11 to +31. (61 to aS are completely the same as the above conventional example).

aa & house, the first arm holding the first magnetic transducer (2) is fixed to the carriage (11) via a leaf spring (G) so as to change to a conventional carriage. This is a coil spring that is installed between the arm and the presser plate and presses the first magnetic transducer against the recording medium (9).

The lever is an L-shaped lever installed on the first arm.

(IID is a rotating lever that rotates around the guide rod a1, and the spring pressure is applied in one direction by a twisting spring @. ■ is a frame that holds one end of this twisting spring, and eu is The tip of the cam is placed in a position where it comes into contact with one end of the rotary lever, and is fixed to the knob lever shaft.

Next, the operation/effect will be explained.

When not recording or reading (head unmead),
As shown in FIGS. 1 and 4, the arm αB is lifted by the movement of the solenoid magnet (not shown), and the second magnetic transducer (6) is separated from the recording medium (9). At this time, the first arm @ does not move, so the first magnetic transducer (2) and the recording medium (9) rotate while being in contact with each other, but the second magnetic transducer (6) Since it is further away, it is not pressed, and as a result, the recording medium (
9) This will reduce wear.

When inserting and ejecting the recording medium (9), arm +11
1 is further lifted by a cam device m (not shown) interlocking with the knob lever shaft (2), and the second magnetic transducer (6) is further separated from the recording medium (9). Similarly, when the knob lever shaft (2) is turned in the opening direction, the cam circle rotates as shown in FIG. 2, creating a gap between the tip of the cam and one end of the rotary lever. Therefore, 0 rotation levers all are torsion springs for return @
Rotate in the direction of the arrow.

The first arm (to) is pulled down and the first magnetic transducer (2)
are separated from the recording medium (9), and the recording medium (9) is connected to each magnetic transducer +21. (Insertion and ejection are possible without contacting 61.

During recording and reading, the recording medium (9) is attached.

The cam mechanism that works with the knob lever shaft moves down. Also, the solenoid's pail αe is attracted by the solenoid, and the lower arm luml is pushed toward the recording medium (9) by the pressure of the coil spring (13) and rotates until it is stopped by the support table α.

The knob lever is turned in the closing direction and cam C! As υ rotates, the tip of cam r211 moves to 1 of rotary lever Q71.
The nine-turn lever αη contacts the end and rotates to the position shown in FIG. Therefore, the lever surface becomes free.

The first arm @ is connected to the recording medium (9) by the coil spring (to) K.
) side, and the receiver rotates until it is stopped at the tip of the carriage (1). Therefore, the gimbal spring +31. (The amount of deflection of 71 is regulated, and the spring pressure generated by this deflection causes the first magnetic transducer (2) and the second magnetic transducer (6) to suppress and contact the recording medium (9) from both sides. Recording and reading are performed as shown in Figure 3.

In the embodiment, the first magnetic transducer (2) was simply supported by a gimbal spring.

It can also be applied to a structure that is supported from the back by a pivot (4).

9 In this embodiment, a support stand α [
However, it is also possible to apply the present invention to one without the support stand α, and the same effect can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, since the first magnetic transducer (2) is configured not to come into contact with the recording medium (9) when the recording medium (9) is inserted or ejected, the conventional head cover is no longer necessary. There is no need to manage the height of the protrusion of the magnetic transducer (2) from the blade cover (5), resulting in improved work efficiency and stable quality. Furthermore, since contact is made with a 0-rotation cam, only a small rotational force is required.

[Brief explanation of drawings]

1 to 5 show one embodiment of this invention. Figures 1 and 2 are sectional front views of main parts, Figures 3 to 5 are
FIG. 3 is a cross-sectional side view. 6 and 1 are cross-sectional side views of the conventional example. In the figure, (2) is the first magnetic transducer, (6) is the second magnetic transducer, (9) is the recording medium, αS is the rotation lever, ■ is the knob lever shaft, 011 is the cam, c25 is the spring, 241 is the 1st
It is an arm. Note that in the drawings, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] In a double-sided flexible disk device that has a structure in which magnetic transducers face each other from both sides of a flexible recording medium and apply contact pressure during recording and reading, the first magnetic transducer is attached to an arm and is biased by a spring when the recording medium is inserted or ejected. One end of the rotary lever is brought into contact with a part of the arm, the arm is moved, the first transducer is separated from the recording medium, and when the recording medium is installed, the position of the other end of the rotary lever is adjusted by a cam interlocking with the knob lever shaft. What is claimed is: 1. A magnetic transducer holding mechanism, characterized in that the first magnetic transducer is brought into contact with a recording medium and pressurized by regulating the movement of the first magnetic transducer and releasing the contact with a part of the arm.