JPS6232368Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device equipped with a floppy drive mechanism, particularly a head device, and an object of the present invention is to reduce damage to an information medium that moves at high speed relative to the head device.

In devices equipped with a floppy drive mechanism, there is a small gap between the head device and the information medium, such as a flexible floppy disk, during operation, and the relative speed between the head device and the information medium is very large. wear and tear caused by contact,
A major feature is that it does not generate heat.

The structure of a conventional head device is shown in FIG. Figure 1 a shows the disk rotating and in operation; Figure 1 b
, the disk is stopped and the arm lifter 5 is pulled up. 1 is a head, 2 is a head plate integrated with the head 1, and 3 is a load arm which is elastically suspended from the arm 4 and comes into contact with the head plate 2 during operation to determine the position of the head 1. The head plate 2 is also elastically suspended. The elastic body interposed between the arm 4 and the head plate 2 etc. is shown in a compressed state in FIG. 1a and in a normal free state in FIG. It is lowered to a certain position on the arm 4 during operation, and raised to another certain position when stopped. 6 is an information medium, which here is a flexible disk. Reference numeral 7 denotes a pivot provided in the center of the head plate 2 in the shape of a protrusion.During operation, this pivot 7 contacts the load arm 3 and rotates in the direction A to prevent friction between the head 1 and the information medium 6. It's becoming possible.

When the flexible disk 6 is rotating as shown in FIG. - Retrieving information from the flexible disk 6 that passes without contact.

Next, as shown in Figure b, the flexible disk 6
When the rotation of the head plate 2 is stopped and the head device is lifted up by the arm lifter 5, the head plate 2 is lifted up by the load arm 3, and the flexible disk 6 is also partially deformed. In such a head device, the load arm 3 and the head plate 2
Since the elastic body connected to the arm 4 is in a free state, neither compressed nor expanded, the load arm 3 and head plate 2 are easily moved in the direction A even with the slightest vibration relative to the arm 4. It's getting old. Therefore, each time the arm lifter 5 is moved up and down as described above, collisions occur between the arm 4 and the load arm 3 and between the load arm 3 and the head plate 2, causing the head 1 and the slider (not shown) integrated with the head 1 to pivot. The disk 7 vibrates in the direction A, and collisions (rolling, etc.) with the flexible disk 6 are repeated. This has caused damage to the flexible disk 6 in the floppy drive device, which has the advantage of not coming into contact with the head 1 even during high-speed operation, and has been a major cause of shortening the number of uses, that is, the life span.

The present invention provides a head device that suppresses the impact caused by the collision between the head and the information medium by arranging a buffer at an appropriate location, thereby extending the life of the information medium. An example will be explained using FIG. 2.

In FIG. 2, 11 is a head, 12 is a head plate, 13 is a load arm, 14 is an arm, and 15 is an arm lifter.The head plate 12 and load arm 13, which are integrated with the head 11, are each elastically suspended on the arm 14 as in the conventional case. has been done. 16
a, 16b, and 16c are buffer bodies attached to the load arm 13; intervening in between. Further, 16d is a buffer body attached to the arm 14, and is interposed between the load arm 13 and the arm 14. Reference numeral 17 denotes a pivot provided in the center of the head plate 12 in the shape of a protrusion. During operation, this pivot 17 comes into contact with the load arm 13, and in order to prevent friction between the head 11 and the information medium 6, the head plate 12 is rotated around the pivot 17. It is rotatable.

In this embodiment, the buffer bodies 16a, 16b, 16
c and 16d are interposed between the load arm 13 and the head plate 12, or between the load arm 13 and the arm 14, so even if the arm lifter 15 is moved up or down, there will be no collision between the load arm 13 and the head plate 12, etc. Since the vibration of the head 11 itself has a small amplitude, there is almost no collision between the head 11 and the flexible disk, and the risk of damaging the flexible disk etc. is extremely reduced.

Although a head device having a structure in which the head 11 approaches one side of a flexible disk is shown above, the same effect can be obtained with a so-called double-sided floppy head device in which heads approach each side of the flexible disk.

As is clear from the above embodiment, the present invention prevents the rotation of the information medium by interposing a buffer between the arm, the load arm suspended from the arm, and the head plate suspended from the arm. Stop and move the arm lifter upwards,
Even when the elastic body is released from compression, the elastic force of these buffers prevents the head plate from moving horizontally, reducing wear between the head and the information medium and extending the life of the information medium. It has the effect of being able to.

[Brief explanation of the drawing]

1A and 1B are schematic cross-sectional views showing the structure of a conventional floppy head device, and FIG. 2 is a schematic cross-sectional view showing an embodiment of the floppy head device of the present invention. 6... Information medium, 11... Head, 12... Head plate, 13... Load arm, 14...
Arm, 16a, 16b, 16c, 16d...buffer, 17...pivot.

Claims (1)

[Scope of utility model registration request] An arm that can be moved to a desired position on the surface of a rotating information medium, an arm lift that moves the arm up and down to change the distance from the information medium, and an arm that is suspended by a plurality of elastic bodies at the tip of the arm. a pivot formed in the shape of a protrusion at the center of the upper surface of the head; an upper surface of the head;
A load arm that covers the side surface, is suspended from the tip of the arm, and can come into contact with the pivot, and is interposed between the arm, the head, and the load arm, and has both ends connected to the arm, the head, and the load arm, respectively. and a plurality of shock absorbers bonded to the head, so that even when the arm lift is moved upward and the compression of the elastic body is released, the head will not damage the information medium due to the buffering force of the shock absorbers. A floppy head device characterized in that it is configured so as not to cause any interference.