JPH08106744A - Magnetic head fixture - Google Patents

Abstract

PURPOSE: To conduct mounting or dismantling simply, and to position a magnetic head accurately by pushing a gimbal-bar against two projections by a clamping- pin and installing the magnetic head. CONSTITUTION: A slider is set up at one end and a first opening is formed near the other end in the gimbal-bar 22 of a magnetic head 20. A second opening is formed to a main body 28, two projection sections 32, 35 are shaped around the second opening on one side of opposed surfaces, and groove 36 are formed on the other side. Clamping-levers 38 are deviated by wound springs 52 in one direction in the grooves of the main body and fitted rotatably, and have clamping-pins 40 projected from the second opening of the main body. The clamping-pins 40 are inserted into the first opening of the gimbal-bar, and the gimbal-bar 22 is pushed against the two projection sections 32, 35, thus installing the magnetic head 20 to the main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head attaching device for attaching a magnetic head to a magnetic head supporting member in a magnetic disk testing apparatus.

[0002]

2. Description of the Related Art In a magnetic disk testing apparatus, a magnetic head is mounted on a suitable magnetic head supporting member. The magnetic head comprises a gimbal bar, which is a metal elastic plate piece, and a slider, which is an electric element for writing and reading data at one end of the gimbal bar. The gimbal bar has a mounting hole at the other end. When attaching the magnetic head to the support member,
It is common practice to screw a male screw into a female screw provided on a support member through a mounting hole of a gimbal bar. However, the drawbacks of this mounting method are that it is time-consuming and that it is difficult to mount the magnetic head in the correct position with respect to the support member due to the play of the mounting holes of the gimbal bar. In the test of the magnetic disk, since the position information and the like are not written on the magnetic disk, it is impossible to recognize the tested position of the magnetic disk by electrical processing. Therefore, since the position to be tested is determined by the mechanical position of the magnetic head, the mounting accuracy of the magnetic head with respect to the supporting member becomes important.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a magnetic head attaching device which can attach the magnetic head to the magnetic head supporting member at an accurate position and by a simple operation.

[0004]

SUMMARY OF THE INVENTION A magnetic head mounting device according to the present invention comprises a slider, a magnetic head having a gimbal bar having the slider mounted at one end and having a first opening near the other end, and a second opening. A body provided with two protruding portions around the second opening on one side of the opposing surface and a groove provided on the other side, and is rotated in one direction by a spring in the groove of the body. And a clamp lever having a clamp pin protruding from the second opening of the body, the clamp pin being inserted into the first opening of the gimbal bar and pushing the gimbal bar against the two protruding portions. A feature is that the magnetic head is attached to the main body by hitting.

[0005]

[Function] Push the biased clamp lever and insert the clamp pin into the opening of the gimbal bar.
When the lever is released, the clamp pin moves the gimbal bar into position 2.
Since the magnetic head is attached by pressing it against the two protrusions, the attachment or detachment can be easily performed, and the magnetic head can be accurately determined.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 4 shows a magnetic head cartridge 10 incorporating the magnetic head mount of the present invention. The magnetic head cartridge 10 has a base portion 12 and an arm portion 16 rotatably attached to the base portion about a pin 14. The magnetic head attaching device 18 according to the present invention is fixed to the lower side of the tip of the arm portion 16 by a screw or the like. The magnetic head 20 comprises a gimbal bar 22 and a slider 24 attached to the tip of this gimbal bar. The slider 24 is an electric element that writes or reads data on the magnetic disk as described above.
The magnetic head 20 is made into the arm portion 16 by attaching the other end of the gimbal bar 22 to the head attaching device 18. FIG. 4 shows a non-loading state in which the magnetic head does not come into contact with the magnetic disk, and the arm 16 is rotated by an appropriate driving means (not shown) until the left upper surface of the arm 16 contacts the stop plate 26. Then, the magnetic head 20 enters the loading state. The base portion 12 is attached to a carriage mechanism (not shown), which controls the movement of the magnetic head 20 on the magnetic disk.

1 and 2 show the magnetic head attaching device 18 removed from the arm portion 18 with the magnetic head 20 attached. 2 is a plan view of the side on which the magnetic head mounting device 18 is mounted, and FIG. 1 is a plan view of the opposite side. Two magnetic heads can be attached to the magnetic head 18 in order to shorten the test time, but in these figures, one magnetic head is shown to show the attached state and the non-attached state of the magnetic head 20. A head 20 is attached.

The magnetic head mounting device 18 includes an arm portion 1
6 has a body block 28 fixed by screws or the like. The main body block 28 has a U-shaped cutout portion 30 which is fitted with a positioning pin provided on the arm portion 16 for positioning when the main body block 28 is fixed to the arm portion 16. As can be seen from FIG. 4, on the magnetic head mounting side of the main body block 28, the mounting position of the gimbal bar 22 of the magnetic head 20 is stepped to form a stepped portion 32. In the stepped portion 32, 1 which penetrates the main body block 28
A pair of openings 34 are formed. In FIG. 2, the left opening 34 is hidden by the magnetic head 20 and only shows the right opening 34, but the left opening 34 is formed at a position symmetrical to the right opening 34. Outside the opening 34,
A locking pin 35 for locking the gimbal bar 22 is provided as described later.

A pair of parallel groove portions 36 are formed on the opposite side of the main body block 28 to which the magnetic head is attached.
A clamp lever 38 is arranged in each groove 36. 3A and 3B show front and side views of the clamp lever 38. The clamp lever 38 has a groove 3
It is an elongated piece that is sufficiently longer than the length of 8. Clamp ・
A clamp pin 40 is mounted upright with respect to the surface of the clamp lever 38 near the center of the lever 38 in the longitudinal direction and near the end face. In FIG. 3, the clamp lever 38
The clamp pin 40 is fixed by inserting the clamp pin 40 into the through hole provided in the above, and screwing the set screw 42 from the side. The clamp pin 40 has a tapered head that widens toward the tip.

Clamp pin 4 of clamp lever 38
A small through hole 44 is provided below 0 and near the opposite end face, and the through hole 44 has a groove portion 36 of the body block 32.
The fulcrum pin 46 provided inside is inserted. At this time, the clamp pin 40 is inserted into the opening 34 of the main body block 28 and protrudes therefrom. The clamp lever 38 is pivotable about a fulcrum pin 46 and a clamp pin 40
Moves in an arc around the fulcrum pin 46. In order to widen the rotatable range of the clamp pin 40, the clamp lever 38 is formed such that the upper left side is deleted in an elongated rectangular shape and the lower right side is deleted in a triangular shape.

As shown in FIG. 3B, a recess 48 is formed on the side surface of the lower right triangular portion. With the fulcrum pin 46 fitted in the through hole 44 of the clamp lever 38 and the clamp lever 38 arranged in the groove 36, the portion of the main body block 28 facing the recess 48 of the clamp lever 38 is indicated by a dotted line. A through hole 50 shown by is formed. A winding spring 52 is inserted into the through hole 50 from the outside of the main body block 28, and the tip of the winding spring 52 has the through hole 5
It passes through 0 into the recess 48 of the clamp lever 38. A female screw is cut near the entrance of the through hole 50,
When the screw 54 is screwed into the through hole 50, the screw 54 presses the coil spring 52. As a result, the end of the clamp lever 38 inside the groove 36 is biased to the inside of the main body block 28, and the end protruding from the groove 36, that is, the operating portion is biased to the outside.

As shown in FIGS. 1 and 2, the magnetic head 20
Is attached to the magnetic head attaching device 18, the operating portion of the clamp lever 38 is manually pushed to the inside of the main body block 28. The clamp pin 40 moves in an arc around the fulcrum pin 46, so that the clamp pin 40 shown in FIG.
Move to the upper right at. In this state, gimbal
The clamp pin 40 is inserted into the opening 56 of the bar 22 and the clamp bar 38 is released. The force of the coil spring 52 causes the clamp pin 40 to move to the lower left again, and its head presses the gimbal bar 22 against the end of the step 32 and also with the locking pin 35. . Further, since the head of the clamp pin 40 is tapered, when the head pushes the gimbal bar 22, a force also acts in the direction of pushing the gimbal bar 22 against the body block 28, The gimbal bar 22 is stably attached to the body block 28. Further, since the clamp pin 40 presses the gimbal bar 22 in two directions of the end portion of the stepped portion 32 and the locking pin 35, the magnetic head 20 can be accurately positioned.

[0013]

According to the magnetic head mounting device of the present invention, the biased clamp lever is pushed to move the gimbal
Insert the clamp pin into the opening of the bar, release the clamp lever, and the clamp pin will press the gimbal bar against the two protrusions to mount the magnetic head. And, the magnetic head can be accurately determined.

[Brief description of drawings]

FIG. 1 is a plan view of one side showing a magnetic head mounting device of the present invention.

FIG. 2 is a plan view of the other side showing the magnetic head attaching device of the present invention.

FIG. 3 is a plan view and a side view of a clamp lever 38.

FIG. 4 is a side view showing a magnetic head cartridge adopting the magnetic head attaching device of the present invention.

[Explanation of symbols]

 18 Magnetic Head Attacher 20 Magnetic Head 22 Gimbal Bar 24 Slider 28 Main Body 34 Second Opening 35 Protrusion 38 Clamp Lever 40 Clamp Pin 50 First Opening

Claims (1)

[Claims] 1. A slider and a magnetic head including a gimbal bar having the slider attached to one end and having a first opening near the other end, and a second opening provided with the second head on one side of the facing surface. A main body having two protrusions around the opening and a groove on the other side, and a rotatably mounted in the groove of the main body in one direction so as to be rotatable from the second opening of the main body. Protruding clamp
A clamp lever having a pin, wherein the clamp pin is inserted into the first opening of the gimbal bar, and the gimbal bar is pressed against the two protruding portions, whereby the magnetic head is attached to the main body. Attachable magnetic head mounter.