JPH04111053U - Floating head slider support device - Google Patents

Abstract

(57) [Summary] [Purpose] In a magnetic disk device equipped with a load/unload mechanism, vibration of the floating head slider that occurs when performing a load/unload operation is suppressed, and the floating head slider is controlled at a predetermined load/unload speed and To provide a floating head slider support device that operates in a posture. [Structure] The floating head slider support device according to the present invention has a hemispherical pivot 13 on the upper surface, a tongue-shaped spring portion 14 to which the floating head slider 16 is joined to the lower surface, and a tongue-shaped spring support portion 15 connected thereto. A gimbal spring 12 consisting of
and a load spring 11 that is connected to the gimbal spring 12 and applies a load to the floating head slider 16 via the pivot 13, and has a vibration absorber 17 at one end, which supports the free end of the tongue-like spring portion 14, and a load spring 11 that supports the free end of the tongue-shaped spring portion 14, and has a vibration absorber 17 at one end. is composed of a vibration suppressor 18 joined to a gimbal spring 12.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention uses a floating header in a magnetic disk device equipped with a load-unload mechanism. This invention relates to a floating head slider support device for supporting a head slider. .

0002

[Conventional technology]

A magnetic disk drive consists of a magnetic head that records and plays information, and a magnetic disk. In order to keep the distance between the surface of the disk in the submicron range, the floating head slider It is mounted on a gimbal spring to follow the protrusions and undulations on the surface of the air disk, and the pitch It is possible to move freely in each of the , roll and parallel directions. Sara In order to maintain a constant flying height in response to the pressure that the floating head slider receives from the airflow, A pin provided on the gimbal spring with a load spring is used to maintain a predetermined load. Added via bot. Figures 3(a) and (b) show the conventional floating head described above. FIG. 3 is a plan view and a side view showing an example of a head slider support device. This floating head slash The support device includes a load spring 31, a gimbal spring 32, and a pivot 3. 3, tongue-shaped spring part 34, tongue-shaped spring support part 35, floating head slider 36 (Fig. 3(a) ), illustrations are omitted).

0003 The start-up of a conventional magnetic disk drive using such a floating head slider support device The contact start/stop (CSS) method is used for movement and stopping. Ta. This is when the magnetic disk is in contact with the floating head slider. This method starts and stops the device. In this method, the floating head mentioned earlier In the slider support device, the tip of the load spring 31 is connected to the pivot 33. They are always in contact and always apply a predetermined load to the floating head slider 36. However , the load is applied even when the magnetic disk drive is stopped, and the floating head To prevent the magnetic disk from adhering to the slider, do not touch the surface of the magnetic disk. It was necessary to disturb it appropriately. For this reason, it is necessary to increase the flying height of the floating head slider more than necessary. This hinders the improvement of storage density and causes friction and friction when performing CSS. The generation of dust related to wear is also an unavoidable problem. Furthermore, current magnetic data With the increase in recording density, high-speed access, and transfer rate of disk devices, floating head The flying height of floating head sliders has been lowered, and as a result, the height of floating head sliders has been reduced. The smoothness of the pressure generating surface and magnetic disk is improved, and the head scratches caused by the dust mentioned above are reduced. The probability of lash or adhesion between the magnetic disk and the floating head slider is increasing.

0004 On the other hand, small magnetic disk devices are installed in laptop computers, etc. Therefore, in order to reduce power consumption, the magnetic disk drive will be stopped if there is no input for a certain period of time. As the number of CSS increases, more CSS resistance characteristics are required. There is. Impact resistance is also required, and with the CSS method, if a strong impact is applied, the magnetic There is a risk of damage to the air disk, floating head slider, head, etc.

[0005] In order to solve the above problems, when the magnetic disk device is not operating, The floating head slider is moved away from the magnetic disk in a lifted state, and the magnetic When starting up the disk device, keep the floating head slider close to the magnetic disk surface. During load operation, when the magnetic disk drive is stopped, the floating state is maintained at a steady floating state. A roller that performs an unloading operation that moves the moving head slider away from the magnetic disk surface. Magnetic disk drives equipped with a door-unload mechanism have been developed.

[0006]

[Problem that the idea aims to solve]

Reliable head disk for loading and unloading floating head sliders In order to realize the The position of the slider at the moment of the code is an important condition. The conventional floating head slider When performing load-unload operations using a load-unloading device, the floating head is Mainly, the free end of the tongue-like spring part becomes large due to the inertia force applied to the slider and the influence of airflow. It vibrates a lot. Figures 4(a) and (b) show the speed of one end of the floating head slider during loading. 3 is a graph showing an example of changes in degree and posture over time. load unload load The unloading mechanism supports the road suspension and raises and lowers it. Therefore, the loading speed of the loading/unloading mechanism is almost constant except for acceleration time. The speed is constant. As can be seen from the figure, the speed and attitude of the floating head slider are The load speed varies greatly from the start to the end of the load, and due to external disturbances, the predetermined load speed and There is a high possibility that you will not be able to obtain the correct and loaded posture. Also, such vibrations are periodic. Even if it is possible to correct the magnetic disk drive when it is not operating, The amount of lift of the floating head slider relative to the surface of the air disk may vary due to assembly errors. This effect affects the instantaneous loading speed and speed of the floating head slider. The attitude deviates from the predetermined design value, resulting in the floating head slider and magnetic disk There is a great possibility that the magnetic head will crash due to contact with the magnetic head. Also , The above phenomenon can be said to be almost the same in the case of unloading.

[0007] The purpose of this invention is to solve the above problems and to The floating head slider at the moment of loading and unloading is suppressed to suppress the vibration generated in the spring. By allowing the speed and attitude of the loader to be set accurately, The risk of contact between the floating head slider and the magnetic disk during loading is low, ensuring high reliability. proposed a magnetic disk drive equipped with a floating head slider load-unload mechanism. It is about providing.

[0008]

[Means to solve the problem]

This invention has a floating head slider joined to the bottom surface and a hemispherical pivot to the top surface. a tongue-like spring portion having a tongue-like spring portion; and a tongue-like spring portion that is connected to one end of the tongue-like spring portion and supports the tongue-like spring portion. A gimbal spring consisting of a tongue-like spring support part, and a gimbal spring configured from a tongue spring support part, and It connects to one end of the val spring and floats in contact with the pivot at the tip end. A floating head equipped with a load spring that applies a predetermined load to the head slider. In the slider support device, A vibration absorber is provided at one end, and the free end of the tongue-shaped spring portion is supported by the vibration absorber. , the other end is equipped with a vibration damping device connected to the gimbal spring. shall be.

[0009]

【Example】

Embodiments of the present invention will be described with reference to the drawings.

0010 Figures 1(a) and 1(b) show an example of a floating head slider support device according to the present invention. It is a top view and a side view which show. In this example, the conventional rotor shown in FIG. spring 11, gimbal spring 12, pivot 13, tongue spring portion 14, A floating head support device having a tongue spring support portion 15 and a floating head slider 16 is added. In addition, a vibration absorber 17 is provided at one end of the vibration absorber 17, and the tongue-like spring portion 14 is supported at one end. , consisting of a vibration damping device 18 joined to the gimbal spring 12 at the other end. There is.

[0011] In other words, the floating head slider support device of this embodiment has a hemispherical pivot on the top surface. 13, and a tongue-like spring portion 14 that joins the floating head slider 16 to the lower surface thereof; a gimbal spring 12 consisting of a tongue-like spring support portion 15 connected to the gimbal spring 1; 2 and applies a load to the floating head slider 16 via the pivot 13. a spring 11 and a vibration absorber 17 at one end, where the tongue spring portion 14 is The vibration suppressing device 18 supports one end and the other end is connected to the gimbal spring 12. It is.

0012 FIG. 2(a) shows a floating head slider support device according to the present invention. When the head slider 16 is lifted or when performing a load/unload operation FIG. 2 is an enlarged side view of section A in FIG. 1. FIG. Pivot 1 provided on the upper surface of tongue-shaped spring portion 14 3 is installed with a predetermined gap from the tip of the load spring 11. It is. The free end of the tongue-shaped spring portion 14 is supported by a vibration absorber 17 and is magnetically When the disk device is not in operation, the tongue-shaped spring portion 14 and the tongue-shaped spring support portion 15 are connected. This prevents deformation of the joint and increases the shock resistance of the magnetic disk drive. Road Anro During the board operation, the mass of the floating head slider 16 causes the tongue-shaped spring portion 14 to Since the loading/unloading operation is performed while the free end of is in contact with the vibration absorber 17, The vibration absorber 17 absorbs vibrations generated in the tongue-shaped spring portion 14 during load-unload operations. as a result, the floating head slider 16 achieves a predetermined load-unload speed. Loading and unloading is performed while maintaining the posture.

[0013] FIG. 2(b) shows a floating head slider support device according to the present invention. FIG. 2 is an enlarged side view of section A in FIG. 1 when the head slider 16 is in a steady floating state. child As shown here, when the floating head slider is in a steady floating state, the tongue spring part 14 inhibits the movement of the tongue-shaped spring portion 14 by separating from the vibration absorber 17. First, the floating head slider 16 follows the protrusions and undulations on the surface of the magnetic disk 21. does not impede movement.

[0014] Although one embodiment of the present invention has been described in detail above, the material of the vibration absorber is Any material can be used as long as it can absorb the vibrations mainly generated in the tongue spring part. The shape of the vibration damping device may be such that it produces the effects shown in the examples. Any shape may be used as long as the shape is correct, and these changes do not violate the spirit of the invention Any modifications may be made without departing from the scope, and the above description does not limit the scope of the present invention. do not have.

[0015]

[Effect of the idea]

As explained above, according to the present invention, the free end of the tongue-shaped spring portion is provided with a vibration absorber. By supporting it with a vibration suppression device, the floating head can be prevented during loading and unloading. Suppressing the vibration of the tongue spring part of the gimbal spring in the slider support device be able to. Therefore, the loading/unloading speed and the momentary float of loading/unloading are The posture of the dynamic head slider can be set almost uniquely, resulting in high reliability. A magnetic disk with a head-disk interface that performs load-unload operations. You can get a screen device. It also protects against shocks received when the magnetic disk device is not operating. Therefore, deformation of the connecting part between the tongue spring part and the tongue spring support part is prevented, and high impact resistance is achieved. A magnetic disk device can be obtained. In addition, the magnetic disk of the floating head slider It is more tolerant of errors in the amount of lift relative to the surface, which reduces manufacturing costs. It becomes possible.

[Brief explanation of drawings]

FIG. 1 is a plan view and a side view of a floating head slider support device according to an embodiment of the present invention.

[Fig. 2] An enlarged side view of section A in Fig. 1 when the floating head slider is lifted and performing a load/unload operation, and an enlarged side view of section A in Fig. 1 when the floating head slider is in a steady flying state. FIG.

FIG. 3 is a plan view and a side view showing an example of a conventional floating head slider support device.

FIG. 4 is an example of a speed change of a floating head slider and an example of a posture change in a pitching direction when a loading operation is performed using a conventional floating head slider support device.

[Explanation of symbols]

11,31 Load spring 12,32 Gimbal spring 13,33 Pivot 14, 34 Tongue-shaped spring part 15, 35 Tongue-shaped spring support part 16,36 floating head slider 17 Vibration absorber 18 Vibration suppression device 21 Magnetic disk

Claims (1)

[Scope of utility model registration request] 1. A tongue-shaped spring portion having a floating head slider joined to the lower surface and a hemispherical pivot on the upper surface; and a tongue-shaped spring support connected to one end of the tongue-shaped spring portion and supporting the tongue-shaped spring portion. a floating head slider comprising: a gimbal spring consisting of a gimbal spring; and a load spring, which is connected to one end of the gimbal spring at its distal end, contacts the pivot at its distal end, and applies a predetermined load to the floating head slider. The support device has a vibration absorber at one end, the vibration absorber supports the free end of the tongue-like spring portion, and the other end includes a vibration suppressor joined to the gimbal spring. floating head slider support device.