JPS62103871A - Floppy disc head device - Google Patents

Abstract

PURPOSE:To obtain the dynamic stability of an electromagnetic transfer characteristic of a head by mounting a pad that presses a floppy disc on the cores and the sliders of heads facing each other on each head. CONSTITUTION:The head 1 that is in contact with a floppy disc 10 from the downward direction is the head of side 0, and the head 1 that is in contact with the floppy disc 10 from the upward direction is the head of side 1, and at a sliding plane 8 of each head 1, pads 5 of corresponding heads 1 face with each other. Therefore, when the floppy disc 10 is inserted between the heads 1 and 1 at the side 0 and the side 1, the floppy disc 10 is pressed at the sliding plane of corresponding head 1 with the pad 5, and the contact between the floppy disc 10 and a core 2 can be performed securely. Therefore, no space between them is generated, and the read and the write of the bits of information can be performed with high density, and thereby, the dynamic electromagnetic transfer characteristic can be stabilized.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a floppy disk head device used in a floppy disk device for writing information to and reading information from a floppy disk. This invention relates to a double-sided floppy disk head device that is arranged to sandwich a disk from both sides.

[Technical background of the invention and its problems]

FIG. 6 is a front view of a conventional example of a double-sided floppy disk head device. The head 11 on side O and the head 12 on side 1 are respectively attached to gimbal plates 14 and 15 of the gimbal ta structure and face each other. Each head 1
1.12 is a core 16.17 that writes information to and reads information from the floppy disk 13, and a core 16.17 that writes information to and reads information from the floppy disk 13.
The slider 18 and 19 support the slider 17 from both sides. The gimbal mechanism allows the heads 11 and 12 to move freely, and causes the sliding surfaces of the heads 11 and 12 to follow the movement of the floppy disk 13, thereby ensuring smooth contact between the cores 16 and 17 and the floppy disk 13.

However, in this conventional device, the head 11.
It is difficult to ensure that the

These days, especially the floppy disk 13 and the head 11.
．． In a high-density recording head device in which the gap between the head and the head 12 is severely restricted, there is a problem in that stable output cannot be obtained.

[Purpose of the invention]

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a floppy disk head device that stabilizes the contact between the floppy disk and the head and realizes dynamic stability of the electromagnetic conversion characteristics of the head. .

(Summary of the Invention) In order to achieve the above object, the floppy disk head device according to the present invention has a pad attached to each head that presses the floppy disk against the core and slider of the opposing head, so that the floppy disk and the head are connected. It is characterized by stable contact between the two.

[Embodiments of the invention]

Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIG. 1 is a front view showing a head of a floppy disk head device according to an embodiment of the present invention, FIG. 2 is a left side view thereof, and FIG. 3 is a front view of the entire operating state. The head 1 has a core 2 for writing information on a floppy disk 10 and reading information from the floppy disk 10, and left and right sliders 3 and 4 that support the core 2 by sandwiching the core 2 from both sides. These core 2, slider 3
The upper surface portion of 4 is a sliding surface 8 on which the floppy disk 10 slides. Here, a step portion 3a lower than the sliding surface 8 is formed on the left slider 3, and a mounting hole 3b is opened in the step portion 3a, and the pad 5 is fitted into this mounting hole 7t3b. As shown in FIG.
In order to ensure this pressing, the upper surface of the pad 5 is formed to be slightly higher than the sliding surface 8 of the head. It is desirable that the pad 5 is made of a soft material such as soft rubber. This prevents the surface of the floppy disk from being damaged. Also, the pad 5 is attached through the attachment hole 3b of the slider 3.
This is done by applying adhesive 6 to the circumferential surface of the hat 5 after fitting the lower part inside.

As shown in FIG. 3, the head 1 constructed as described above is attached to a gimbal plate 7 having an n-gimbal configuration, and is supported so as to follow the movement of the floppy disk 10.

In the figure, the head that welds to the floppy disk 10 from below is the side O head, and the head 1 that contacts the floppy disk 10 from above is the side 1 head. 8, the pads 5 of the corresponding heads 1 face each other.

Therefore, the floppy disk 10 is placed on side O and side 1.
When inserted between the heads 1.1, the pads 5 press the floppy disks 10 against the sliding surfaces of the corresponding heads 1, ensuring reliable contact between the floppy disks 10 and the cores 2. Therefore, there is no gap between them, and information can be read and written at high density.

4 and 5 are perspective views showing specific examples of the sliding surfaces of the floppy disk head device according to this embodiment. In FIG. 4, the side edge of the sliding surface 8 of the head 1 on which the floppy disk slides is cut into an arcuate shape by blending or the like. Further, in FIG. 5, the entire sliding surface 8 is curved in a circular arc shape. By performing such processing, the contact between the floppy disk and the rotating surface 8 becomes smooth.

Note that in these figures, 9 is a gap formed in the center of the core 2.

In the above embodiment, the head is supported by a gimbal plate, but since the pad enables stable contact between the floppy disk and the head, the gimbal mechanism may be omitted. By omitting the complicated gimbal mechanism, it is possible to simplify and downsize the entire mechanism of the floppy disk device.

(Effects of the Invention) As described above, according to the present invention, since the pad for pressing the floppy disk is attached to the sliding surface of the corresponding head, there is no gap between the floppy disk and the core even during rotation, and the Therefore, dynamic electromagnetic conversion characteristics are stabilized, and high-density information can be read and written.

[Brief explanation of drawings]

FIG. 1 is a front view of a head of a floppy disk head device according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG.
The figure shows a front view of the operating state of the floppy disk head device, FIGS. 4 and 5 are perspective views of specific examples of the floppy disk head device, and FIG. 6 shows a conventional floppy disk head system. (It is a front view showing the operating state of. 1...Head, 2...Core, 3.4...Slider, 5...Pad, 8...Sliding surface, 9...1 )/Tsubu, 1o...Floppy disk. Applicant's agent Sato-Omo 1 Figure 3 Figure 5 Figure 52 Figure 4 Figure color 6 Concave

Claims (1)

[Claims] 1. A double-sided disk, in which a pair of heads each having a core for writing/reading information on/from a floppy disk and a slider supporting this core are arranged to sandwich the floppy disk from both sides. A floppy disk head device, characterized in that each head is provided with a pad for pressing the floppy disk against the core and slider of the opposing head. 2. A floppy disk head device according to claim 1, wherein a side edge of the sliding surface of the head on the floppy disk is formed in an arc shape. 3. A floppy disk head device according to claim 1, wherein the entire sliding surface of the head on the floppy disk is curved in an arc.