JPS592267A - Recording and reproducing device - Google Patents

Abstract

PURPOSE:To reduce an impact produced when a head is loaded and to reduce greatly the damage inflicted on a read/write head or a floppy disk, by having a simple constitution in which a link structure is applied to a head loading mechanism. CONSTITUTION:A head loading solenoid 2 is energized, and a solenoid mobile iron core 6 is sucked toward an arrow 11. Then a pad load 1 is pulled centering on a fulcrum 13 via a pad load link 3 and moved down toward an arrow 12. The move-down degree of the load 1 varies by the intervention of the link 3 and in accordance with a curve C. The move-down speed is decelerated in comparison with the sucking speed of the core 6. A head assembly 5 also moves down in response to the load 1, and a head is loaded at a point A. In this case, the speed of collision is decelerated between the head and the floppy disk. This reduces the damage of the floppy disk. The load 1 moves down to a point B even after the head is loaded. Then the floppy disk is pressed by a sponge 4 to secure a stable circuit. When the energization of the solenoid is cut off, a projection 5a of a head carriage is pushed up to unload the head.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording and reproducing apparatus having a mechanism for loading a read or write head onto a recording medium such as a floppy disk.

In order to extend the life of the floppy disk, it is desirable to load the information writing head or the information reading head onto the recording medium, for example, a floppy disk, only when recording or reproducing information on the floppy disk. The method used for head loading and bringing them close together is often used.

Conventionally, this type of device installed a damper in the solenoid to reduce shock, and controlled the current flowing through the solenoid, but this had the disadvantage of making the device complex and large, and making the circuit configuration complicated. Ta.

The present invention relates to a recording/reproducing apparatus which eliminates the drawbacks of the above-mentioned conventional example and at the same time is mechanically simple and can be downsized.

Figure 1 shows an embodiment of the present invention, in which 1 is a pad load with a sponge 4 glued to its tip for stably holding a floppy disk, and the other end is bent into a rectangle and loosely fitted into the base of a floppy disk drive. (Hole H1 is placed.

1a is a pin integrated with the butt funnel 1, and is for loosely fitting the band load link 6. The pad load link B has a hole for connecting with the solenoid movable iron core 6, and the pad load link 6 and the solenoid movable iron core 6 are connected by a coupling pin 9 inserted into the hole. 7 is a return spring, which is located between the head load solenoid 2 and the coupling pin 9, and this spring 7 is connected to the torsion bar 14.
The sponge 4 is normally biased upward by the spring 7. 5 is a head assembly (l), and the head is fixed to the lower surface (not shown). The head is loaded or unloaded by the protrusion 5a of the head carriage in conjunction with the movement of the bad load 1. The head pressing force during head loading is determined by the pressing force of the tin ring S. The pad load 1 is constantly pressed downward by a torsion spring 14.

The pin 1a, the band load link 3, the coupling pin/9 and the pad load link 3 are fixed by the ViE ring 810 to prevent removal.

To further explain the pad load link 6, the hole 6H provided for inserting the bottle 1a forms a vertical slit perpendicular to the moving direction of the plunger, and when the plunger is not driven (as shown in FIG. In this state, the pin is located at the bottom of the slit, and when the plunger is driven, the pin is located at the top of the slit.

When the granger is not driven, the straight line connecting the bins 8 and 9 is approximately perpendicular to the direction of movement of the granger.

In the above configuration, when the head-low tonlenoid 2 is energized and the solenoid movable iron core 6 is attracted in the direction of the arrow 11, it is pulled around the fulcrum 16 via the band load link 3 of Band Road 1, and is lowered in the direction of the arrow 12.

The amount below the bad load 1 changes according to the curve 9 in FIG. The downward speed of the bad load 1 is reduced compared to the suction speed of the solenoid movable iron core 6. bad road 1
In conjunction with this, the lower head of the head assembly 5 is loaded. Although the head is loaded at point A in FIG. 2, the collision speed with the floppy disk is slow, so damage to the floppy disk is reduced. Even after head loading, bad load 1 still goes down to point B, sponge 4
The floppy disk is pressed down and rotates stably. By turning off the power supply to the head load lenoid 2, the pad load link 6 is pushed by the force of the return spring 7. The pad load 1 is raised upward and pushes up the protrusion 5a of the head carriage, resulting in an unloaded state.

As explained above, it is possible to reduce the shock during head loading with a simple structure of introducing a link structure to the head loading mechanism, and damage to read/write heads and floppy disks can be greatly reduced. made it possible to do so.

[Brief explanation of drawings]

! ! FIG. 1 is a perspective view of the herad load mechanism, and FIG. 2 is an explanatory diagram showing the suction amount of the head roton renoids and the large amount of change under the bad load relative to the suction amount. Here, 1 is a bad load, 1a is a shaft, 2 is a herad load solenoid, 6 is a lud load link, 5 is a head assembly, 6 is a solenoid movable core, and 7 is a return spring.

Claims (1)

[Claims] A recording/reproducing device characterized by head loading via a link mechanism.