JPS60173765A - Floppy disc driving device - Google Patents

Abstract

PURPOSE:To prevent a jacket from being caught by a head when a floppy disc is loaded or unloaded, by providing a projection, which has a slope and is formed into one body together with a head mounting mechanism, above a mounting face, which mounts the head to the head mounting mechanism, and under the surface of the head. CONSTITUTION:A projection 10a formed into one body together with a head mounting means 10 is provided. That is, a head side face 3a parallel approximately with an end face 2c of a jacket notch part 2d is brought under the highest position of this projection 10a when a head 3 is in the still state or a gimbals is operated, and a slope 3d, a curvature face 3c, or the like in the upper part are not edged to prevent them from catching the jacket notch end face 2c. Consequently, the jacket notch end face 2c is slided on a slope 10c of the projection 10a when a floppy disc 2 is loaded or unloaded, and next, the jacket notch end face 2c is slided on the curvature face 3c or the slope 3d of the head 3, thus preventing the jacket from being caught by the head.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a floppy disk drive.

[Background of the invention]

In a conventional floppy disk drive device, there is a floppy disk 2 that is a storage medium that can be attached to and removed from the device, and a head 3 that reads and writes to the floppy disk 2. A separate member was provided in the head section to prevent the recording surface 2a of No. 2 from collapsing with the protective jacket 2b.A specific example of this is shown in FIG.
As shown in (2), the head attachment part 4a of the gimbal 4 can follow the movement of the head 3 in the Pl and Q1 directions, that is, the gimbal movement.
Refer to Fig. 4 (2) The head 3 attached to J is 9
The IJ body member is hereinafter referred to as the outer slider 5), and the head 91rJ surface 3a when the floppy disk 2 is released.
This prevents the floppy disk 2 from being put in or taken out and the jinpal 4 from being deformed due to contact with the jacket notch end surface 2c. That is, when inserting and removing the floppy disk 2,
In this method, the jacket cutout end surface 2C is guided by the inclined surface 5a of the outer slider 5, and the above-mentioned problem does not occur. However, when this method is used, the height of the gimbal 4 in a resting state J], It becomes necessary. In other words, if the height dimension is not properly controlled, not only will contact between the recording surface 2a of the Florapill disk 2 and the head surface 3b not be ensured, but the outer slider 5 will be scratched, and valuable Not only does it have the fatal flaw of destroying data, but it also increases the number of parts and man-hours.
There is also a risk that adhesive may adhere to the head surface 3b when the slider 5 is bonded. As mentioned above, not only does the cost increase, but reliability also decreases. 1. As another example, (
1) As shown in (2), a member separate from the head 3 (hereinafter referred to as the hogoban 6) is attached to the outermost periphery 4b of the gimbal 4 so that it cannot follow the gimbal movement of the head (see Fig. 5 (2)). This prevents the floppy disk 2 from being blocked in and out and the gimbal 4 from being deformed due to the jacket notch end surface 2C hitting the head side surface 3a when the disk 2 is removed. That is, when inserting the floppy disk 2, the jacket notch end surface 2C is aligned with the inclined surface 6 of the storage rack 6.
This method does not cause the above-mentioned problem by being guided by the surface of the head 3, but this method also has exactly the same drawbacks as the conventional example (shown in FIG. Since the hogoban 6 does not follow the height of the cymbal 4 when it is stationary, it is necessary to manage the height h2 when it is in operation, and the caps of the head 3 and hogoban 6 (this is also the height of the gimbal 4 when it is stationary). gl and g2 in working condition
(both) must be managed.

As described above, the conventional technology has many fatal drawbacks as a floppy disk drive device.

[Purpose of the invention]

The purpose of the present invention is to create a floppy disk drive that is optimal for preventing the jacket from getting caught in the head when loading and unloading a 70-inch disk, which is an essential component of a low-cost, high-reliability floppy disk drive. It is on offer.

[Kiri Kaname of invention]

The ninth problem is that the floppy disk 2 cannot be inserted or removed and the gimbal 4 is deformed due to the protruding end surface 2C of the floppy disk 2 getting caught on the head side surface 3a.
As shown in the figure, the head side surface 3 is located above the sliding surface 7 of the floppy disk 2 and is approximately parallel to the jacket notch end surface 2C.
If there is From 0) to (
As shown in 2), the floppy disk 2 cannot be inserted or removed because it is tilted in the P3 direction, and if you try to pull it out, the G
), cymbal 4 may undergo neutral deformation, and in the worst case, it may come off, which could be fatal, as it would impair data compatibility, which is the basic performance of the 70 Tsuhy disk drive device and is the most difficult aspect of this device. Therefore, in the present invention, the protrusion 10at integrated with the head mounting means 10 is
establish.

That is, the end surface 2C1/koPi of the jacket notch 2d and the substantially parallel head side surface 3a are positioned below the highest position of the protrusion 10a when the head 3 is at rest and in gimbal operation, and the upper part is as follows. Slope 3C or
The curvature surface 30 is designed so as not to form an edge (as shown in FIGS. 13 and 12, for example) so that it does not catch on the jacket notch end surface 2C. Therefore, floppy disk 2
At the time of departure, the jacket cutout end surface 2C slides on the sloped surface 10C of the projection 10a, and then slides on the sloped surface 3d of the head 3.
Alternatively, by sliding on the curvature surface 3C, catching is prevented, and the above-mentioned problem is fundamentally solved. According to the invention,
A highly reliable floppy disk drive device with an extremely simple configuration and first-generation cost can be obtained, and its industrial value is great.

[Embodiments of the invention]

The present invention will be described below based on the drawings. I will clarify. First, the floppy disk 2 is inserted into the floppy disk #1 drive device. Next, when the floppy disk 2 is completely inserted, it is rotatably fixed to the fixing means 14 provided on the main body 1, and is rotated by the drive motor 13, which is the driving source for the floppy disk 2, so that the recording surface The lower head 3 is attached via the gimbal 4 to the head tower structure 10 that is already in contact with the head 2a, and the upper head 3 is attached to the helad arm 9 via the gimbal 4 via the head arm 9. A certain head pressure is applied by the torsion spring 11, and the head mechanism section 15, which is composed of the head mounting mechanism and the head 3, is positioned by the head driving means 16 serving as the driving source, so that both the upper and lower heads 3 can read and write. becomes possible.

From the readable state, the head arm 9 is moved upward (the moving means is not shown), and the floppy disk 2 can be taken in and taken out. In the floppy disk device as described above, in the present invention, the head 3 is mounted on the head mounting mechanism 10 above the mounting surface 10d and below the head surface 3b, and the floppy disk 2 is completely inserted. Even when the head mechanism section 15 is driven by the head drive means 16 for reading and writing, there is a protrusion 1 integrated with the head mounting means 10 located inside the jacket notch 2d of the floppy disk and at a position that does not contact the floppy disk.
0a is set so that the head side surface 3a, which is parallel to the jacket notch end surface 2C, is tilted so that the highest position of the protrusion 10a is also at the bottom when the head 3 is at rest and when the gimbal is in operation. Surface 3d or curvature surface 30
The jacket notch end surface 2C should be constructed so that it does not have equal edges (for example, as shown in FIGS. 12 and 13).
It has a structure that prevents it from getting caught. With this, the above-mentioned problem can be fundamentally solved.

Further, according to the present invention, data destruction due to the floppy disk 2 getting caught in the head 3, which has been a fatal problem in the past, and failure of the floppy disk drive device,
Problems such as poor operability and increased costs can be dramatically improved with an extremely simple mechanism.

That is, the shape of the inclined surface 3d or corner portion is made to be like the curved surface 3C, and the jacket notch end surface 2C of the protrusion 10a is
The protruding side surface 10b, which is approximately 11 parallel to
It is possible to loosen the assembly and component precision that must be ensured, and there is no fatal drawback of scratches on the recording surface 2b of the floppy disk 2 due to contact with the surface of a different member with uneven surface precision as in the conventional example. Problems such as data corruption are eliminated without any problems.

In addition, the floppy disk 2 and floppy disk drive device will not be damaged by deformation of the jacket 2a and gimbal 4 due to the floppy disk 2 getting caught in the head 3 when the floppy disk 2 is removed. There is no possibility of getting stuck, which gives a feeling of poor operability.

Furthermore, in terms of cost, as mentioned above, the structure is simple, which reduces assembly man-hours, and the precision in assembly and parts manufacturing is also compromised. It is possible to reduce costs by eliminating the need to newly install a polishing jig for the head surface 3b, which is essential, and by eliminating the need to use a large amount of expensive material for the head 3.

〔Effect of the invention〕

According to the present invention, the basic performance of the floppy disk drive is satisfied, and the floppy disk drive is extremely simple without compromising compatibility (compatibility between JK drives), which is the most difficult aspect of this device. It can be provided with a simple configuration, low cost, and high reliability, and its industrial value is enormous.

[Brief explanation of drawings]

Figure 1 is a sectional view of the floppy disk drive, Figure 2 is a perspective view of the head drive unit, Figure 3 is a plan view of the floppy disk, Figures 4 and 5 are claim views of the conventional example, and Figure 6. Up to Figure 9, the conventional head is installed as is; Figure 6 is a cross-sectional view of the head mechanism at (/Vv); Figure 7 is a cross-sectional view of the head mechanism when the floppy disk is pulled out;
Figure 9 is a detailed view of the head in Figure 7, Figures 10 to 17 are drawings of the present invention, and Figure 10 is )(,/W
FIG. 11 is a sectional view of the head mechanism when the floppy disk is pulled out, and FIGS. 12 to 17 are detailed views of the head. 1... Main body, 2... Floppy disk, 3...
Head, 4... Gimbal, 7... Floppy disk sliding surface, 8... Floppy disk insertion slot, 9...
・Head arm, 10...Head tower mounting mechanism, 11...
・Torsion spring, 13... Drive motor, 15...
Head mechanism section, 16... Head driving means. 2 Figure foil 3 Mouth foil δ 2 4d 4-

Claims (1)

[Claims] 1 A main body which is a main component, a drive motor provided on the main body and used to drive a floppy disk, a fixing means for rotatably fixing the floppy disk, and at least one head provided on the main body. In a head mechanism section of a floppy disk drive device, which includes a head mechanism section constituted by a head mounting mechanism mounted on a floppy disk, and head MATHD means serving as a drive source for this head mechanism section, the head is mounted on the head mount mechanism. A projection having an inclined surface integral with the head mounting mechanism is provided above the mounting surface on which the floppy disk is mounted and below the head surface, and the projection is such that the floppy disk is completely inserted into the head mechanism section. A 70-bit disk drive device characterized in that the head is located inside the jacket notch of the floppy disk and at a position that does not come into contact with the floppy disk even when driven by the head drive means.